This story is a collection of four love relationships: Geeky Hong (Michael Ning) who looks forward to romance bumps into Shirley (Shirley Chan); Rich kid Silver (Chloe So) who is socially anxious hires a rental boyfriend Jerome (Adam Pak); Chung (Anson Kong) and Zoe (Karena),a dysfunctional pair of social couple; and Ho (Edward Ma) an indecisive person meeting Tin Tin (Roxanne Tong), a nurse with polyamorous relationships. Following the through line in each story, they encounter unexpected obstacles in their relationships all set on the eve of Valentine's Day.

Former warden Tang is imprisoned for accepting bribes, while Jun who failed to escape from prison returns to prison to continue serving his sentence. Jun sees that Tang is familiar with the prison and lures him into cooperating in the breakout plan. The two hit it off, and even tried to create trouble and blame it on Big Roller. Jun soon discovers that Tang has other tricks, forcing him to team up again with Big Roller, Mak and new warden Ma to crack Tang`s conspiracy.

Following his defeat by Master Ip, Cheung Tin Chi tries to make a life with his young son in Hong Kong, waiting tables at a bar that caters to expats. But it's not long before the mix of foreigners, money, and triad leaders draw him once again to the fight.