London's latest art exhibition is truly killer... An underground artist leaves three glass cases containing morbid works of art right in Trafalgar Square: the corpses of three homeless men.

The artist has promised that more works will follow, so newly promoted Detective Inspector Grace Archer and her witty detective Sergeant Harry Quinn must race against time to discover the clues left behind by the cunning killer.

When other exposed bodies appear at other London monuments, which the killer also broadcasts live on social networks, the hunt for the killer gathers momentum. However, when Archer discovers that the killer may be closer than she ever knew, she realizes that he has his sights set on her... He is creating a masterpiece, and she is to become the star of his collection.