D.C. detective Natalie Gibbs is the daughter of the late international jewel thief Harry Gibbs. After she has a one-night stand with insurance investigator Chance Mitchell, she can't get him out of her system. Just one more night, she convinces herself. So she disguises herself as Rachel, her cousin, to get her night. But Chance needs her to act as his mistress to help catch a ruthless millionaire crook who's stolen a famous diamond. Excitement, scorching sex and a good story make The Proposition (4), by Cara Summers, an enticing debut for a new miniseries.