In this detective series, Walter Tatum, a qualified, independent, self-made private investigator in Miami with a small staff, gets stuck with Gwen Cross, a spoiled but intelligent rich girl, first as a case, then as his partner in countless investigations. She makes both his private and professional life a lot more difficult, but also more interesting, so gradually they sort of grow toward each-other according to the complementary principle 'opposites attract' and always get the job done, for their clients and/or for justice.