John Lewis is bored of his job and his wife. Then Liz, wife of a local councillor, sets her sights on him. But this is risky stuff in a Welsh valleys town - if he and Liz ever manage to consummate their affair, that is.
Only Two Can Play is a 1962 British comedy film directed by Sidney Gilliat starring Peter Sellers, Mai Zetterling and Virginia Maskell. The screenplay was by Bryan Forbes, based on the 1955 novel That Uncertain Feeling by Kingsley Amis.