13-year-old Sinikka vanishes on a hot summer night. Her bicycle is found in the exact place where a girl was killed 23 years ago. The dramatic present forces those involved in the original case to face their past.
On the first day of a new school year, the over-strained teacher Andrea tells her best friend and colleague Katja that she will quit her job. But a dramatic incident with a pupil shatters the lives of Drea, Katja and their pupils forever.