Despite repeated warnings and a survivor who named the perpetrator, a killer continued his crimes unchecked. The final installment of “Someone’s Hunting Us” reveals how missed opportunities led to even more tragedy.

SBS’s “Queen Mantis” sparks new interest in a serial killer’s dark past. Go Hyun Jung shares a tense encounter with her on-screen daughter-in-law, played by Kim Bo Ra, as secrets of a 20-year-old crime resurface.