When Sam regains consciousness in the middle of a crowded subway, he doesn’t know how he got there, where he came from nor his own name. He franticly searches for his identity, using the contents of his backpack. Slowly but surely he realizes his life is in great danger.

Johan has been locked up – wrongly in his opinion – for the murder of his father and little sister. His mother is the only one who can prove his innocence, but he hasn’t been able to contact her for years. When he is transferred within the psychiatric prison to the long-stay department, it’s the last straw. He decides to escape and to go looking for his mother.