Cassie is reeling from her recent breakup when a traumatic one-night-stand sends her spiraling over the edge. Aided by her best friend Claire, they decide to teach the guy a lesson by instructing him in the art of becoming a better man.

The pressure on Cassandra mounts as she attempts to juggle an uncooperative Owen, faking his social media accounts, her new heartthrob PR client from across the pond, and the arrival of a new potential threat.