The Traitors UK has returned for its fourth series, with a new twist.
In a change-up to the original format, one contestant has been picked as a secret traitor.
The first episode on New Year's Day saw host Claudia Winkleman select Hugo, 51, Rachel, 42, and Stephen, 32, as her traitors.
She went on to pick a fourth person separately - and even viewers won't be informed of their identity.
It was revealed this person will wear a red cloak instead of a green one like the known traitors.
A best-selling crime writer, a retired police detective and a psychologist are among the new contestants on the new season.
A barrister, a poker-playing gardener, and a cyber security consultant are also be among the new batch trying to uncover any murderous traitors.
The new series continues tonight on BBC One at 8pm.