"Grand slam is a sophisticated comedy two-hander about a failed British tennis player and the unscrupulous man hired to act as her bodyguard.

The tennis player, Madeleine, is in London as a wild card entrant into Wimbledon. Her usual bodyguard has suffered an injury to his hand and Cedric has been hired as the replacement live-in protector.

For the first time in her career, Madeleine manages to win the early stages of the tournament and suddenly finds herself in the unbelievable territory of the Wimbledon semi-finals. Madeleine's and Cedric's relationship develops with unexpected results."