P.S.I. Luv U (1991)

Wanda Talbert is a New York con artist. After being caught by the NYPD, she agrees to help them nail a criminal. What they didn't tell her was that she needed to testify against him, and that will not take place for a few years, which means that she must remain in custody until then, which doesn't make her happy because it means that she needs to put her moneymaking schemes and con-games on hold. They send her to Palm Springs, where an ex-federal marshal runs a security agency where she will work while hiding. Also accompanying her is Joey Paciorek, a New York police officer who will protect her--and make sure she doesn't bolt. They pretend to be married couple Cody and Dani Powell, which won't be easy since they don't like each other.