Jenna Hamilton and Adam Olsen co-own a bookstore on Granville Island, Vancouver. Jenna is also a Dating Coach who helps people deal with their qualms about dating. They attend the engagement party of Jenna's friend, Carla, and her fiancé, Bruce. Carla is also one of Jenna's clients and has been unlucky in love in the past. Her first two fiancés died, one in an accident and one in an unsolved murder, before the weddings could take place. But Carla is hoping the third time will be the charm.

The party is a huge success, but shortly after Jenna arrives home, she receives a frantic call from Carla. As she and the wedding party prepared to leave, she found a note telling Bruce to dump her or die.

Since Jenna and Adam had been influential in uncovering a killer the previous spring, Carla begs them to find out who left the note and why that person would threaten Bruce.