While Rosemary and Laura are helping to do up a garden for a Spanish tennis camp that is holding a tournament, in which Laura's son is taking part, tragedy strikes when the body of one of the Pro-Am tournament players is discovered. Although the player is thought to have died in a drunken accident, the gardeners soon find evidence that they were murdered, especially when the player's wife is killed in an accident intended for someone else. The pair soon realise that something is not right within the tennis camp...