There are few people out there who are as naturally funny as Rhys Darby, who you may know from Flight of the Conchords or Pirate Radio. He’s the sort of guy who could even make the process of telling someone that they’re going to die kind of funny. Which is exactly what happens in his latest role as a doctor in the comedy Diagnosis: Death. In the direct-to-DVD flick, Darby joins fellow Conchords Bret McKenzie and Jemaine Clement for a few hilarious bit roles in a movie about a supernatural force that invades a hospital for the terminally ill.

Have a look at the clip and the film’s official synopsis below.

A supernatural force brings together two lost souls undergoing radical treatment at an experimental drug-testing facility. When the facility is locked down for the weekend and the drugs take effect, the human guinea pigs experience sinister hallucinations pointing to a horrific double murder. Unsure of where reality stops, the apparitions become more and more threatening until the only way to leave the facility alive is to solve the haunting secret.

Directed by Jason Stutter. With Raybon Kan, Jessica Grace Smith, Suze Tye, Bret McKenzie, Rhys Darby. Jemaine Clement (from Flight of the Conchords) makes a special cameo appearance.

DIAGNOSIS: DEATH will street on December 29th, 2009.