Unfulfilled at work and dissatisfied with her marital life, a middle-aged woman attends a high school reunion and finds a floodgate of flashbacks of her salad days open before her mind’s eyes. She was inseparable with two boys 20 years ago but married one of them eventually. All the memories eventually zero in on one critical incident that changed her life and those of the boys forever.

After a bar brawl with an off-duty cop, aspiring thug Fan (Neo Yau, Fire Lee’s gonzo Robbery) is sentenced to three months in juvenile detention like Hong Kong’s Sha Tsui Detention Center, which practices military-style rehabilitation. Insults and abuse are core tenets of the treatment, carried out by the bored, jaded staff, where an occasional true believer lingers among the guards…