Office Christmas Sweater Murder Mystery
Game Length
1.5 - 3.5 Hours
Difficulty
Medium
Game Setting
Office Party
Character Genders
Flexible
Why You'll Love It
Posted To Your Door
A premium boxed kit, beautifully made
4–20 Players
Scales to suit your guest list
In Person or Over Zoom
Host at the table or online
Fully Replayable
A different culprit every play
Everything Included
Host guide, characters, clues & audio
No Experience Needed
The kit does the hard work for you
Vendor:Masters of Mystery
Replay-able Office Christmas Murder Mystery Dinner Party Game - Host an Ugly Christmas Jumper Party Game Night - Office Christmas Party Games - English 4-20 Players V2
€49,95
Choose the version that matches your guest count. Each kit includes balanced character roles for that group size.
Pairs well with
Why You'll Love It
Posted To Your Door
A premium boxed kit, beautifully made
4–20 Players
Scales to suit your guest list
In Person or Over Zoom
Host at the table or online
Fully Replayable
A different culprit every play
Everything Included
Host guide, characters, clues & audio
No Experience Needed
The kit does the hard work for you
The Host Can Play Along
Ages 15+
Supports Virtual & In-Person Play
Replay-able Office Christmas Murder Mystery Dinner Party Game - Host an Ugly Christmas Jumper Party Game Night - Office Christmas Party Games - English 4-20 Players V2
Instant Digital Access / 4 - 20 Players / English
€49,95
The Kit
What's In Your Kit
Character GuidesA booklet for every suspect — secrets included
Host Guide BookletStep-by-step hosting, zero prep stress
Detective Audio & VideoThe Detective sets the scene for you
EvidenceClues to reveal round by round
Costume SuggestionsDress the part, effortlessly
Invitation BookletsSet the scene before the night
Everything in your kitThe Guest List · Office Christmas Sweater Murder Mystery
Meet the suspects
Every guest becomes a character. Choose your edition by how many join the party — the bigger the night, the deeper the cast.
4–8 Players The core cast — in every edition
4–14 Players More guests join the party
Unlocks with 4–14 & up4–20 Players The full house
Unlocks with 4–20Want every suspect at your table? Pick the 4–20 edition.
Included free with every game
The murderer is chosen in secret. Even you won't know.
Every game now comes with its own app. Send cinematic invitations, hand every guest a secret script on their phone, and let the app quietly cast the killer.
1The Invitations
Invites with their faces on
Cast your guests and the app sends each one a cinematic invitation — their character, their costume brief, and an RSVP that fills your table for you.
2The Green Room
Every phone becomes a secret dossier
Before the party, each guest steps into the green room — their character portrait, their backstory, their costume, and lines only they can see.
3The Reckoning
The app picks the killer — in secret
One tap, and someone in the room becomes the murderer. Only their phone knows. They read the guilty lines; everyone else plays it straight. Nobody can spoil it — not even the host.
4The Investigation
Evidence, detective audio — and one final countdown
Tap-to-examine evidence lands each round, the Detective's recordings set the scene, and when it's time, a synchronized countdown unmasks the killer on every phone at once.
More ways to play
Dress the part
Snap a photo in costume and it becomes your character's face all night — in the parlour, on the ballots and at the reveal.
Capture the night
Every guest's photos and videos collect in one shared party album — to relive the morning after.
Detective or suspect
Run the night as the Detective, or play a character yourself and let the app's recordings narrate.
Crown the winners
Vote on the honours — Best Detective, Best Costume, Best Liar — and crown them together at the end.
Free with every gameNo app store — plays in any browserNo accounts or sign-upsHost in person or over video call
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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Delivery & Downloads
Your digital game is delivered instantly — the moment your order is confirmed, your full kit is ready to download. There's nothing to wait for and nothing posted. Physical boxed kits are dispatched within 1–2 working days.
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Hosting Support
Every game comes with a step-by-step Host Guide, so you're never on your own. Still stuck? Our team are real mystery enthusiasts and reply within 24 hours on weekdays.
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FAQs
Player numbers, timings, how to host virtually — most questions are answered on our Help & FAQs page. Take a look before your big night.
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Contact Us
Prefer to talk it through? Send us a message any time and we'll help you choose the perfect mystery for your group.
Host A Murder Mystery Dinner Party
How It Works
Suspects
Choose Your Suspects
Pick the game version that suits your guest list, whether you’re planning a small murder mystery dinner party or a larger Christmas Sweater-themed gathering.
Invitations
Send Invitations & Character Roles
Invite your guests and send each person their character details and costume ideas before the party begins.
The Scene
Set the Christmas Sweater Scene
Add dinner, drinks, costumes or decorations to create the perfect Christmas Sweater atmosphere. Keep it simple or go all out.
The Case
Start The Case
Start with the Detective’s opening statement, then let guests introduce their characters, mingle, gossip and begin uncovering secrets.
The Murderer
Secretly Choose the Murderer
After the first round, the murderer is secretly selected, meaning the mystery can unfold differently each time you play.
Investigate
Investigate the Evidence
Follow the host guide through rounds of motive, opportunity and method as guests question each other, reveal clues and try to catch the killer.
Accuse
Accuse, Reveal & Award Prizes
Everyone makes their final accusation before the murderer confesses. End the night with awards for best detective, best costume, best performer or most suspicious guest.
The perfect whodunit gift
Buying it for someone else? After checkout, send it straight to their inbox as a gift — with a personal message, scheduled to land on the big day. They open a cinematic reveal, unlock the game, and the night is theirs to host.
Birthdays, Christmas or a date night in — choose the boxed kit and a beautifully made game arrives at their door — or send the digital edition straight to their inbox.
Enhance Your Christmas Sweater Murder Mystery Dinner Party
Welcome to our dedicated section for all things murder mystery! Here, you'll find everything you need to create an unforgettable and immersive experience for your guests. Whether you're looking for menu ideas to tantalize taste buds, curated playlists to set the perfect mood, costume ideas to bring characters to life, or decoration tips to transform your space, we've got you covered.
Shop the Feed
Discover videos from our players.
@masters_ofmystery
Running Mystery Nights for Your Business?
Planning to host this game at a paid or ticketed event, a corporate away-day, a pub or restaurant night, a team-building session — or anywhere it forms part of a business? You'll need a Commercial License.
It gives you the rights to run our mysteries for profit — at your venue, for your clients, or streamed publicly — professionally and fully covered. Add it to any game from £165. Already bought the game on its own? Purchase it again with the license and we'll refund your original order.
FAQs
Please read our FAQs page to find out more.