The town of Rudolph, New York, is gearing up to celebrate Christmas in July. Merry Wilkinson, owner of Mrs. Claus’s Treasures, is looking forward to a busy weekend starting with the arrival of Santa by boat to begin his summer vacation at the lake. But Merry is caught off guard when her ex-fiancé, Max Folger, unexpectedly arrives with a team from a lifestyle magazine wanting to do a feature on the July festivities.

It’s clear that Max’s visit has less to do with business and more to do with winning back Merry’s heart. Between the magazine feature and the Christmas events, Merry has too much on her plate to deal with an old flame. But when Max is found strangled to death in Mrs. Claus’s Treasures, it’s up to Merry to find out who wanted him dead and stop a killer from ruining the summer holiday cheer.