Every murder mystery needs a decoy or two. Somebody has to look guilty who isn't, or the whole game collapses into a straight line from opening clue to obvious culprit. But there's a wide gap between a red herring that keeps a table of guests arguing until the final reveal and one that gets sniffed out in the first twenty minutes and quietly ignored for the rest of the evening. So what separates the two?
A red herring needs a motive that actually holds up
The laziest kind of decoy gives a character a flimsy reason to look suspicious and hopes nobody examines it too closely. Guests do examine it closely. That's the entire point of the evening.
A red herring earns its keep when the suspect's motive is genuinely plausible on its own terms, strong enough that if the real killer hadn't confessed, this person could believably have done it. Give them a grudge that's been simmering for years, a financial secret that's about to unravel, or a relationship that soured in a way nobody quite talks about. The motive shouldn't feel like it was bolted on to distract from the real one. It should feel like it belongs to that character regardless of who actually swung the candlestick.
Suspicious behaviour needs an innocent explanation waiting behind it
The best red herrings aren't built on lies. They're built on the truth, badly timed.
A guest was seen sneaking out to the garden at midnight. Suspicious, certainly. But if the real reason is a secret phone call to a solicitor about an unrelated matter, or a rendezvous nobody wants to admit to, that's far more satisfying than "they were planning the murder and then decided not to." When the innocent explanation finally surfaces, it should feel like a small story in its own right, one that was quietly happening all along in the background of the bigger crime.
The clue itself should be genuinely ambiguous
A weak red herring only works if you squint at it in exactly one direction. A strong one holds up under scrutiny from either side.
Take a bloodstained handkerchief found in someone's room. If it can only ever point to murder, the clue is doing one job badly. If it could just as easily belong to someone who cut themselves gardening, had a nosebleed, or bandaged a friend's injury earlier that day, the clue is doing two jobs well. Players should be able to build a genuinely coherent case around the innocent reading, not just dismiss it as the obvious wrong answer dressed up to look tempting.
It should connect to the real mystery somehow
Random decoys, unconnected to anything else going on, tend to feel like padding. The strongest red herrings brush up against the actual crime without being part of it.
Perhaps the falsely suspected guest overheard something relevant and has been too embarrassed to mention it. Perhaps they were in the right place at the right time for an entirely different reason, and that reason happens to matter later for someone else's alibi. Weaving the decoy into the wider fabric of the story means it never feels like a detour. It feels like part of the same tapestry, pulling attention in a direction that turns out to be a dead end, but an interesting one.
Timing matters more than most hosts expect
A red herring dropped too early gets forgotten by the final round. One dropped too late feels like a desperate attempt to muddy the water after the real trail has gone cold.
The sweet spot tends to sit in the middle of the evening, once guests have settled into their characters and started forming theories, but before the final clues have narrowed things down too far. That's when a well-placed piece of misdirection has the most room to breathe, and the most potential to genuinely shift the conversation around the table.
Resolution is where a red herring earns its reputation
However clever a decoy is during the evening, its final impression is set entirely by how it's put to rest. If the truth comes out in a rushed line at the end of the host script, guests will remember the twist as a cheap trick. If it gets a proper moment, even a brief one, where the falsely suspected character explains themselves and the pieces click into place, the whole thread feels intentional rather than accidental.
Good red herrings don't need to fool everyone completely. Some guests will see through them early, and that's fine. What matters is that the herring gives them a case worth building, a theory worth defending, and a satisfying "ah, of course" moment when it finally unravels. Get that right, and the real killer gets to hide in exactly the kind of company they need.
