Two couples go on a boating holiday together, and run into some strange people and events.

Credited as the inventors of modern British satire, this Terry Johnson film charts the searing highs and lows of Peter Cook and Dudley Moore (Rhys Ifans and Aidan McArdle), these two extraordinary and different comedians, whose careers and private lives often swung in as uncontrolled and anarchic turns as their wit. From their first meeting as Cambridge undergraduates in 1960, through their beginnings on Beyond The Fringe, the drama follows their infamous journey from the heady sixties, including their TV performances as the legendary Pete and Dud and Derek and Clive, up until Cook's death in 1995.