Kang Ji-hyeon

Connected by phone in the same home but 20 years apart, a caller puts a woman’s past — and life — on the line to change her own fate.

After a traumatic event, a drug trafficker turns sides and conspires with a dangerously ambitious undercover police officer to bring down the mysterious kingpin of a major drug cartel.

An old man is found dead, and his housekeeper is charged with the murder. Her defense attorney is surprised to learn the only witness to the crime is a teenage girl with autism.

Seo-jin is a widower still grieving his wife's death. Then he receives the news that his long-lost younger sister, Yoo-jin, who went missing 25 years ago, has turned up. Unlike the rest of his family, who welcome her into their arms, Seo-jin feels that Yoo-jin is a stranger.

A man's daughter is the victim of a brutal hit-and-run car accident. The only witness is the man's dementia-ridden old mother who barely remember any details. The two must work together to find the culprit.