Duk-soo lost his father and younger sister while taking refuge during the Korean War. He leaves for Germany to work as a miner and enters the Vietnam War. He wishes to find his sister.

Ms. Ma is sent to jail after being accused of killing her daughter. She escapes in order to find the real murderer and starts solving other cases.

Min-sang, a meticulous planner and tidy single man, is frustrated daily by his tenant, Jin-young, a veterinarian who turns his newly mortgaged building into a mess. During another quarrelsome day ...