Outside an apartment complex in the French port city of Le Havre, a female student is gruesomely murdered in the middle of the night. The complex's 38 inhabitants say they heard or saw nothing. Until one of them, the introverted pilot Pierre (Yvan Attal), decides to break the silence. He admits to the police that he was awakened by a desperate, primeval cry. A cry that cannot have escaped his neighbours' attention.