Once, Ruby, Crystal and Jade were on top of the world. Now they're desperate for a comeback. When a mysterious millionaire offers them a world tour, they jump at the chance. But there are a few strings attached, and soon these sexy sirens are in hot water. With the help of an undercover agent, they're about to prove that you don't toy with the Sapphire Girls.

Jackie is a socialite who believes her husband Paul is cheating on her. To find the truth she recruits Gigi, a very attractive private investigator. At the same time, elsewhere, auto-mechanic Cliff suspects his wife, Taryn is cheating on him. He hires Franky, another private eye. Are the two married partners having an affair together - or could it be there are others involved?