Rats

A creature-horror film set in a decaying psychiatric hospital where a hidden threat lurks in the tunnels below, built on paranoia and visceral threat.

The Brookedale Psychiatric Hospital is a crumbling institution which barely has enough money to remain open. Formerly a prison, it sits atop a warren of tunnels and sewage system viaducts. But Brookdale has a secret - a secret known by only one person. There's something living in the tunnels - something that's developed a taste for human blood...