When her son who lives in a single room is given an outrageous $1,000 water bill, a mother decides to become a detective and find out what is behind it.
Park Ji-young
Lee Mi-kyung
Jo Bok-rae
Gae-tae
Kim Dae-hyun
Lee Ik-soo (#404)
Heo Jeong-do
Kang Ha-joon (#403)
Baek Soo-jang
Oh Deok-goo (#301)
Esom
Kyung Jin-sook (#402)
Lee Sung-wook
Lee Tae-gil
Oh Chang-kyung
Park Se-joo
