Detective Katrine Ries Jensen and legal psychiatrist Thomas Schaeffer form a special unit at the Copenhagen Police investigating serial killings. A case from Schaeffer’s past crops up. As a young psychologist, he held back from sending a patient, who was manically drawing the details of a traffic accident, to a secure hospital. Now these bloody scenes resurface, enacted as real killings.

Emmalou works as a waitress on a cruise ship filled with lonely people. She mourns the loss of her boyfriend who died in an accident the previous year. One day, a small boy disguised in a blue costume boards the ship

Sensitive 12-year-old Alf is the low man on his class' totem pole, and he's sick of it. Forming a secret, Machiavellian alliance with another student who also has grown weary of being bullied, he hatches a plan to throw a wrench into the well-oiled gears of the school social order. Everything seems to go according to plan, until Alf discovers that turning the tables on his tormentors has its own dire consequences.