Dirk Gently's Holistic Detective Agency;

After The Hitchhiker's Guide to the Galaxy, Douglas Adams went on to create Dirk Gently, a detective with a belief in the fundamental interconnectedness of all things, a unique relationship with the laws of probability, and a love of cats and pizza. In Dirk Gently's Holistic Detective Agency, Dirk finds himself on the trail of a gruesome murderer who is somehow involved with the works of Coleridge, quantum physics, and the enigmatic study of the Cambridge Professor of Chronology. Ultimately, the stakes of the case are far greater than a single murder, but go to the fate of life on Earth. Confused? Don't be - everything is connected.