Twist 1: The Serial Killer Reveal (Ep 7–8): Kang Jin-mook, the seemingly soft-spoken, intellectually challenged butcher and father of Kang Min-jung, is revealed to be the serial killer who murdered Min-jung and multiple local women over twenty years, severing their fingertips.
Twist 2: Dong-sik's Action (Ep 2–4): Dong-sik found Min-jung's severed fingertips at Jin-mook's house. Knowing the police would write off her disappearance as a runaway, Dong-sik personally placed her fingertips at the minimart to trigger a public uproar and force a serial murder investigation.
Twist 3: Yu-yeon’s Cause of Death (Ep 11–14): Kang Jin-mook broke Yu-yeon's fingertips twenty years ago, but she escaped onto the main road. She was first hit by Park Jung-je’s car, and moments later, run over a second time by Han Ki-hwan (Joo-won's father), who was driving drunk with land developer Lee Chang-jin.
Twist 4: The Tripartite Conspiracy (Ep 12–15): Han Ki-hwan, Do Hae-won, and Lee Chang-jin covered up the hit-and-run to safeguard Ki-hwan's police promotion and Hae-won's land redevelopment project. Ki-hwan later ordered Jin-mook’s assassination in prison.
Finale Resolution (Ep 16): Joo-won acts as bait, recording a private conversation where Han Ki-hwan admits to his crimes. Ki-hwan, Hae-won, and Chang-jin are arrested. Dong-sik insists that Joo-won arrest him for evidence tampering. One year later, after serving his prison sentence, a fully healed Dong-sik meets Joo-won at Manyang butcher shop, and both exchange genuine, peaceful smiles.