Jason Watkins guest stars as instruction manual writer Robert R Roberts (aka erotic crime author Scarlett Melange) in an investigation into copycat crimes based on her novels.

Incompetent private detectives Max and Ivan are contacted by the very dull white goods instruction manual writer Robert R. Roberts (Jason Watkins), who wants them to investigate a series of copycat crimes based on the erotic crime fiction novels he writes under the pseudonym Scarlett Melange.

Their investigation takes them to the Peckam Flower and Vegetable show, where they fear the life of head judge Joaquin Zamorano is in considerable danger. Along the way, they meet the one person on earth who might be more boring than Robert R. Roberts - his wife Roberta.