Brothers Dowdle Productions

When a team of explorers ventures into the uncharted maze of bones that lies beneath the streets of Paris, they embark on a journey into madness and terror.

In their new overseas home, an American family soon finds themselves caught in the middle of a coup, and they frantically look for a safe escape in an environment where foreigners are being immediately executed.

When hundreds of videotapes showing torture, murder and dismemberment are found in an abandoned house, they reveal a serial killer's decade-long reign of terror and become the most disturbing collection of evidence homicide detectives have ever seen.