Bologna on the 15th August. Unbearable heat, an empty city. Claudia is a young student in a hurry to return to the hospital bedside of her dying grandmother. Tomas, a young punk, on his way to elope with his girlfriend Francesca and rescue her from her abusive father. Aldo is a husband with guilty secrets that must be erased from his apartment before his wife returns. All three have an urgent need to be somewhere else. But then they're trapped in a lift and the jeopardy escalates in this dark, twisting and taught psychological: one of them is a serial killer...