Love is in the air for postmaster Cassie Miller and the residents of North Ashcot, Massachusetts. Valentine's Day is right around the corner, and the town is gearing up for a special dinner dance at the senior center. With the local musical group performing at the dance displaced from their regular practice location, Cassie is all too happy to host them during off-hours at the post office. But not everything is coming up roses. When one of the musicians, Dennis Somerville, is found shot in his home, rumors swirl over who might have wanted him dead. Cassie must determine if there is a link between a string of recent break-ins and Dennis's murder before another victim winds up with more than a broken heart.