There are three people: an alien woman who comes up to an alien husband and a government's assassin wife who has to kill the alien woman. The wife is an undercover agent who is in charge of national top secrets. To her, her poet husband is like an alien. The husband has a key inside his head and the wife has a gun by her hand. Also the alien woman has purposeful love. Their mixed-up destiny does not just happen and the devil reveals his real shape and starts to kill people one by one.

외계인 남편에게 다가온 외계인 여인. 그리고 그 여인을 죽여야 하는 정부 암살 요원 아내. 남편의 머리엔 열쇠가 있고, 아내의 손엔 총이 있고, 여인의 사랑엔 목적이 있다. 세 명의 뒤섞인 운명은 우연이 아니었으며, 드디어 실체를 드러내는 악마는 이제 하나 둘 살인을 시작한다.