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 fianc , Bruce. Carla is also one of Jenna's clients and has been unlucky in love in the past. Her first two fianc s 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.