When 'ex-pat' Dinny returns to London for a few days, he enlists Graham to mind his Villa with the strict instruction that no-one is allowed in. When Dinny's wife finds out he is away, she arrives in Spain to claim the villa which is in her name. To do that she must have the villa officially declared vacant, but it's guarded by Graham and three vicious dogs. Blake is called in to find a way past the dogs.