Richard Thorncroft is a has-been British TV actor who used to be famous in the late 1980's for playing the titular and charismatic lead role in the Isle of Man detective show Mindhorn, a character with a Robotic eye that can literally "see the truth". Unfortunately, after becoming a little too pompous and arrogant, Richard ends up insulting both the Isle of Man and his fellow cast members on the Wogan chat-show, including his on-screen and real life love interest Patricia DeVille, (Effie Davies) his Stuntman, (Simon Farnaby) and bit-part costar Peter Easterman. (Steve Coogan) He decides to leave to try and make it big in Hollywood, but 25 years later and he's balding in a flat in North London and has recently been replaced for an orthopaedic sock advert by John Nettles, much to his chagrin. He is even more jealous that Easterman now fronts a long running spin-off show which has far eclipsed the success of Mindhorn. Richard has an unexpected opportunity to reignite his career though ...