Eun-A lost her family at the hands of a serial killer. She is now mentally and physically destroyed. Eun-A then decides to get revenge. She enlists the help of four people marginalized by society including a North Korean defector, ex-gang member and a person heavily in debt. All four persons need organ transplants. Eun-A's plan is then set in motion.
Based on the webcomic "The 5ive Hearts" by Jung Yeon-Sik (published from April 6, 2011 to October 31, 2011 via cartoon.media.daum.net).