A successful sitcom writer with plenty of money, a stable marraige, a platonic mistress and a flash car, Laurence 'Tubby' Passmore has more reason than most to be happy. Yet neither physiotherapy nor aromatherapy, cognitive-behaviour therapy or acupuncture can cure his puzzling knee pain or his equally inexplicable mid-life angst.

As Tubby's life fragments under the weight of his self-obsession, he embarks - via Kierkegaard, strange beds from Rummidge to Tenerife to Beverly Hills, a fit of literary integrity and memories of his 1950s South London boyhood - on a picaresque quest for his lost contentment.