There's been another Murder in Successville. This week a priceless piece of art is stolen from right under DI Sleet's nose, and Bjork is murdered in the process. Sleet and his new sidekick Richard Osman wade into art's black market underworld to catch their culprit. Find the art and they'll find their killer.

This week things are getting very strange in Successville. Reporter Harry Hill is found dead, covered with radiation burns and surrounded with weird footprints that look like they belong to a monster… DI Sleet and his new celebrity sidekick Lorraine Kelly delve into all things supernatural as they grill this week's suspects.