悬疑小说作家李豌豆在飞机上遇到外出寻觅失踪妻子的丁朝阳，两人在交往中逐渐产生爱情。同居后，李豌豆先是对房门紧锁的隔壁房间产生了疑惑，又发现了午夜按响门铃的"女鬼"......一个个触目惊心的阴谋展现出来，李豌豆一步一步地逼近真相......（Suspense novel writer Li Wandou meets with Ding Chaoyang who going out to look for his missing wife in the plane and these two people fall in love in the exchanges gradually. After cohabitation, Li Wandou begins to doubt the next room with locks on it, later, she discovers the "female ghost" who pressing the doorbell at midnight...... the shocking conspiracy come to the stage one by one and Li also gets close to the truth step by step......）