Eun-a, who was living a happy life with her family, loses everything to a psychopath serial killer. After the tragic incident, she gathers four people with different talents who are in need of organ transplants to achieve her revenge.
| Actor | Role |
|---|---|
 Kim Sun-aEun-ah | Eun-ah |
 On Ju-wanJae-wook | Jae-wook |
 Don LeeDae-ho | Dae-ho |
 Shin Jung-keunNam-cheol | Nam-cheol |
 Jung In-giCheol-min | Cheol-min |
 Lee Chung-ahJeong-ha | Jeong-ha |
 Park Hyo-jooHye-jin | Hye-jin |
 Cho Han-chulSeong-il | Seong-il |
 Kim Hyeon-sooGa-young | Ga-young |
 Choi Hak-rakJeong-do | Jeong-do |
 Jung Soo-youngDae-ho's Wife | Dae-ho's Wife |
 Yeo Min-jooHyeon-joo | Hyeon-joo |
 Lee Jun-hyeokDetective Park | Detective Park |
 Park Ji-hongKyung-soo | Kyung-soo |
 Oh Min-aeBakery owner | Bakery owner |
 Hong Woo-jinKyung-soo Alley Man | Kyung-soo Alley Man |
 Oh Man-seokBoss | Boss |
 Joo Young-hoHye-jin's Husband | Hye-jin's Husband |
 Ha Soo-hoGun Trader | Gun Trader |
 Gong Da-imRunaway Girl | Runaway Girl |