Dirk Gently, Holistic Detective, takes on the case of a missing cat and soon finds himself in a web of intrigue involving a missing CEO, a disappearing husband, and a recursive time loop.
Dirk discovers a connection between two unrelated cases. The first involves a client who thinks that the Pentagon are attempting to kill him and the second involves a person whose horoscopes appear to be coming true.
Dirk and Macduff return to Cambridge, to the university that Dirk was thrown out from for cheating twenty years ago. They have been hired by Dirk’s former professor as security consultants to guard a valuable robot. After the robot is stolen and the professor is discovered dead, Dirk and Macduff are soon implicated as the chief suspects.
Two of Dirk's former clients are murdered, and he decides to flee the country when Gilks shows up. However, he's distracted when a woman arrives to hire him to track down a stalker. Dirk is confident that he can solve the case... since he's the stalker.