Perfect Number

To him the only unsolvable equation was love.

A brilliant math teacher formulates the perfect cover-up after his neighbor murders her abusive ex-husband.

Thriller Mystery

Ryoo Seung-bum

(Suk-go)

Lee Yo-won

(Hwa-sun)

Kim Yoon-sung

(Sang-joon)

Kim Bo-ra

(Yoon-ah)

Kim Ah-ron

(girl)

Cho Jin-woong

(Detective Min-Bum)

Lee Seok-jun

(Nam Tae-woo)

Kwak Min-ho

(Chul-min)

Lim Sung-Min

(Jung-sook)

Kwon Hae-hyo

(Team Leader)

Kim Joo-ryoung

(Madame)