鮑威爾（安東尼?霍普金斯 Anthony Hopkins 飾）是一位專門研究黑猩猩的人類學家，他在盧旺達長期觀察觀察當地黑猩猩的活動。然而兩年前，這位性情溫和的學者突然性情大變，殺了兩位當地的森林管理員以及傷害了多名管理員后神秘失蹤。如今，他終于被逮捕歸案，關押在美國高度戒嚴的精神病監獄。　　年輕的精神病專家卡爾特（小庫珀?古丁 Cuba Gooding 飾）意圖揭開鮑威爾精神失常之謎而一舉成名，于是他深入到監獄直接與鮑威爾進行對話。鮑威爾一開始對這位訪客充滿敵意，身為人類學家的他在卡爾特面前一點也不落下風。隨著對話的逐漸深入，卡爾特漸漸了解到了事件真相：鮑威爾殺害的管理員其實是偷獵大猩猩的惡棍……

　　The nightmare was about a demonic possession. A long time ago, there was an evil in a small town and it was jealous of the girl and would never let her go, since the devil loved the girl. One night, the evil raped the girl and she became pregnant. After months the girl could not hide her baby, her father figured her secret out and clapped the girl in irons and locked her room door. But the evil put the gun to her father' temple and saved the girl. The father had a stroke and had been sleeping on the bed for three months and died. Time went on and the girl brought a child into the world. Naturally, people who were living in the village heard the story and they did not want to see neither the girl nor the baby since when the baby was born, plants dried in the field, fishes lost in the lake and people had prayed to the god for rain, but nothing changed in the village. People got so angry, dug a hole in front of the fountain, put her into the hole and threw stones at her face. The girl died soon after. The evil went off the deep end, took a revenge of the village and killed everyone except two sisters because the evil wanted them to take care of its baby...

　　在金融中心如矣島從事股票基金工作的黃宇真外表光鮮，但生活究竟怎樣苦樂自知。從小獨自撫養他長大的父親病重在床，巨大的生活壓力令他不得不向高利貸借款，卻又似乎背上更為沉重的包袱。在此期間，他和妻子的關系逐漸冷淡，并出現裂痕；而老實木訥的他在公司又受到部長和后輩排擠，面臨被裁員的命運，　　在某個沮喪的夜晚，醉酒而歸的黃宇真重逢兒時的玩伴正勛。正勛從小自稱正義的化身，他多次幫助宇真排憂解難。當晚，宇真一句無心之言，次日后輩竟被人殺害，而他的事業似乎也出現了轉機。在此之后，接連有令宇真厭煩的人離奇死亡，似乎那個正義的朋友暗中出手幫助了他……

 25年前，高中生任娜美（沈恩京 飾）一家從全羅道搬到漢城，娜美入讀真德女子高中，因方言濃重怯于開口的娜美幸運的得到了同班大姐頭夏春花（姜索拉 飾）的維護，并與圍繞在夏春花周圍的執著于雙眼皮的金玫瑰、滿嘴臟話的黃珍熙、夢想成為作家的徐金玉、要成為韓國小姐的俞福姬以及沉默傲慢的美人鄭秀智等五人結識。在一次和不良少女團對決之后，春花和娜美等七人組成了“Sunny”團體……多年以后，家庭主婦娜美在去醫院探望母親時偶然重逢了身患絕癥住院的春花，后者希望在生命的最后兩個月內，能夠再見當年的Sunny成員。娜美找到金玫瑰，兩人委托私家偵探尋找當年的同伴，而那些關于青春的回憶，也在一個個熟悉的名姓后面再次被喚醒。