Iris and Anže are heading to a cottage to bring back the spark to their failing relationship. There she meets someone, and things don't go as planned.

The events in the movie begin just before classes start, when one of the students sets off a stink bomb in the school restroom. Because of the incident, the school has to be evacuated and classes are dismissed early. The principal and the school counselor must then identify the real culprit among five suspects. Was it just a childish prank, or a deliberate act?