An assassin forges an unlikely partnership with one of his targets: a woman seeking revenge for the murder of her family.

A two-part drama about the search in 2008 for missing Yorkshire schoolgirl Shannon Matthews.

Sir Arthur Conan Doyle, Harry Houdini and Stratton are tasked with the cases that nobody else can solve. It challenges their sense of what is real and what is not. Houdini is a skeptic, while Doyle believes in the unseen. Their diverse viewpoints make solving crime a challenge and often Stratton is put in the middle. The trio will take on cases that involve vampires, ghosts, monsters and poltergeists…or are they a ruse to conceal murder?