Part 5/8:
Ling's world unravels further as he discovers that he has been taking a drug—Propranolol—that affects his memory, creating an alarming gap in his recall of events. In a sequence of unsettling events, connections to his troubled childhood emerge, bringing to light the pain of guilt surrounding a tragic incident where he lost his son.
Haunted by his past and the pressure of the ongoing investigation, Ling faces suspicion from his peers and increasingly paranoid thoughts about his family’s safety. This paranoia culminates in the climactic moment when he realizes that his adopted son Sunny has been hiding dark secrets, including a twisted connection to the murderer, Mang.