该剧是讲述男女之间的爱情和友情的爱情剧，讲述8年里一直都是朋友的两个男女因为一夜情而发生的感情变化。李裕英将在剧中饰演男主金来菀8年的女性朋友、法语同声传译韩恩星一角，是一个朝气蓬勃，无法预测她下一秒会做什么的角色。金善浩饰演金来菀，他是外貌和性格兼具、前途无量的画家，同时也是韩恩星唯一的男性朋友。他具备来者不拒的自由灵魂，某一天他和一直以来完全不把她当女人看待的韩恩星经历了一次突发事件之后，恋爱、创作都不如意了，陷入了低谷并领悟了真爱。

江原道舍北地区最底层，野狗一般的许英达（金在中饰）和狐朋狗友们吃喝嫖赌，打架诈骗，无恶不作，和在赌桌上对局的富家公子哥尹杨夏（林时完饰）俨然分出两个世界的人。美丽女孩吴静熙（白珍熙饰）的出现，让贵公子和小痞子的对抗进一步升级。与此同时，刀头舔血的英达不可避免卷入凶杀案件之中。在此期间，他遭遇作风彪悍的首尔地方警察厅广域搜查队刑警张东秀（李凡秀饰），分处黑白两道的英达和东秀，以及挥金如土的杨夏，在激烈碰撞的同时，渐渐知晓彼此之间令人难以置信的渊源与联系。童年凄苦的命运，让三个男人拥有了跌宕曲折的人生。

　　A chilling mystery thriller, blessed by stirring imagination and striking acting performances, especially by child actors. Among witty scares invented by the director herself, we get closer to untreatable true sins of the Catholic religion. Skilfully raised fantasies about exorcism, possession and resurrection slowly transform into breath-taking horror, which may not leave your thoughts for a long time after the screening.　　A devotedly faithful family mourns their elder son Han-byul. Both parents sincerely believe that it is the hand of good lord Jesus that tests them with painful suffering. The reverend advises adopting a child with special needs and sharing all the love they still have in their wounded hearts after the tragic accident. So the grieving parents embrace visually impaired charismatic Isaac, who quickly finds his place in their spacious two-storey house. The acutely sensitive boy counts that the kind family still consists of seven members, and witnesses how the crying Han-byul constantly visits them. Confused by incredible revelations, the mother starts to notice previously unseen guiding signs.　　Guilt confronts sanity. Grief transmits into fear. Doubts bring home obsession. New clues expose hurtful lies. Divine faith opens all gates to powerful devilish manipulations. The prolonged process of healing disperses into drowned secrets. How long can you believe something whispered by someone who is not entirely trustworthy? How far will a loving mother go to protect her adopted child who suddenly uncovers not-so-pleasant truths?