Headcase

Anna Lee's first assignment at her new job in a private security firm, Brierly Detective Agency, is to find a missing girl, Thea Hahn. A gifted sixteen-year-old, she has been attending a tutorial college in Bloomsbury, prior to going up to Cambridge. Anna looks up one of Thea's tutors, John Tulloch, only to be told by his young son Sam that his father is dead. Back at her flat, Anna's on-off boyfriend Quex has re-appeared.