When the young daughter of police captain Richard Malinowski is raped and murdered, his colleagues hastily find a suspect called Daniel Eckman.

From jail he starts writing to the policeman, expressing his deep regret for the death of the daughter and proclaiming his innocence.

He finds that Salinas, a known serial killer of children, was in the area at the time of the killing.

When he comes to, he is bound in duct tape beside an open grave at the spot where the girl's body was found.

Explaining that he always knew Eckman was his daughter's real killer, Malinowski buries him alive.