As the Deadloch Feastival program continues despite two murders, the body of another suspect is found on the shore of the lake. Despite the victim being dead for five years, Dulcie suspects that it's linked.

In the aftermath of Eddie's press conference, Deadloch is in a state of panic and the killer strikes again; taking the count up to five. Eddie and Dulcie jump from suspect to suspect as relationships crumble around them.