A story about two lovebirds. Look how fate bring and tied two lovebirds, to have and to hold, in sickness and in health, for richer and for poorer, till death do them apart. The story of police who did her job fairly. Following every rules according to the book of law. Arresting bad guy, killers, gang members and lock them in cells. Keeping citizen save. But that all is about to change when she accidentally fell in love with cold-blooded killer.

Kwon JIyong, 25

People would see him as a crazy,loving, caring, young and wild going guy with colourful world. But what they din't know that he's a cold hearted, violent killer. Perhaps, his background is not that colourful after all. In people's eye, he's a good, loyal and loving boyfried of Jessica Jung. But in reality, Jessica Jung is just his partner to elminate his target. And the best friend he could have and trust.

Jessica Jung  23

She is Jiyong's partner. She has a pair of long silky white legs, petite body, fair skin, breathtaking lips, a pair of eyes that could make you fall so hard for her. But behind of all that, she's a monster waiting to hunt. Many people thought she's a loving girlfriend of Jiyong but actually they are just partners, and they are best friends when they are not 'working'. They care for each other. Their relationship is like a brother a sister.

Choi Seunghyun 26

He is a good looking police. Probably the most handsome officer in Seoul. A pair of smoky eyes is what it takes for a girl criminal to surrender over him. Even young innocent girls with do crime just to be interrogated by him (a little over.. XD). Working with Kim Taeyeon, his partner. They would do anything together. They are often mistaken as a couple but they are just best friends and partner.

Kim Taeyeon 22

Beauty is the word that can described about her. Even though at a young age, she is swift, good and intelligent to be an officer. Her beauty is something that can be compared with angels. Being a partner with Choi Seunghyun. They are both best friend and good at cracking cases. They both cared for each other.