Maggie Tyrell believes in happy endings. Her brothers run Tyrell Investigative Services and spend their days getting the dirt on cheating spouses and scam artists, but Maggie wants none of that. She sets up her own agency, "Finders, keepers," to locate lost lovers and bring them together.

Noah Davis's lover is lost. He and Sisela agreed to marry, but before they took that step, they decided to spend one year apart, pursuing their separate dreams. Noah wanted to travel around the world. Sisela wanted to see if she could make it as a popular singer. A year later, he's ready to settle down and she's nowhere to be found.

Maggie promises to find Sisela—and discovers that happy endings aren't necessarily as easy to find as lost lovers. For one thing, Sisela is no longer the woman she was when Noah proposed to her. For another, Maggie realizes she's falling in love with Noah. Her job is to create happy endings for others. Does that mean she can never have her own happy ending?