The most dangerous people are those you trust.

The dismembered body of a young woman is discovered in a forest near Hamburg. Her remains give a terrifyingly vivid account of the unimaginably cruel torture she suffered before her death.

She won't be the only victim. Within a very short period of time, more women are discovered.

Assistant District Attorney Alex Gutenberg and criminal psychologist Dr. Evelin Wolf feverishly try everything to bring down the serial killer before he takes his next victim.

A clue leads them to a severely mentally disturbed inmate of an asylum for the criminally insane. He seems to be the key to solving the current crimes. But the interned remains silent.

Evelin has only one chance: She must succeed in penetrating the inmate's tainted mind. But the price is high. Evelin tracks down a terrible secret and suddenly finds her own life at stake…