电影《7号室》以首尔一家即将倒闭的DVD房为背景，描述两个男人在DVD房7号室里，为了掩饰攸关性命的秘密，还有摆脱眼前困境而努力的故事。
Gilang is an extra actor who has been in the film industry for 10 years. Gilang always gives too much extra effort so he is blacklisted by many directors and casting directors. Excessive effort makes Gilang always run out of money to invest in his extra roles. Gilang loves a Citra award actress named Rachel Hesington. Unfortunately, Rachel is dating a rising actor, Kevin Sumitro. Kevin is the son of a wealthy businessman named Mr. Nedy Sumitro. Mr. Chen, a mining entrepreneur, kidnaps Kevin and asks for a ransom of 100 billion. The kidnapping incident occurs at the shooting location. In the confusion, Kevin is kidnapped. The kidnapper thinks Gilang is Kevin. So Gilang and Rachel are also kidnapped. The director is also kidnapped. As the story progresses, Gilang manages to overcome all the obstacles that block him, using the knowledge he learned when he was an extra in many films.
亚历山大（米凯莱·里翁迪诺 Michele Riondino 饰）在不久前失去了自己的妻子，如今，他和心爱的儿子过着相依为命的日子，虽然常常会因为想念妻子而感到分外的寂寞，但这平静的生活已经让亚历山大觉得很满足了。一天，亚历山大接到了高中同学休伊（亚历山德罗·罗亚 Alessandro Roja 饰）打来的电话。休伊请求亚历山大帮他一个忙，那就是将儿子借给他用几天。原来，休伊意外得到了一笔价值三百万的巨额遗产，但得到遗产的条件只有一个，那就是结婚生子。在巨大的利益面前，休伊决定铤而走险，就在亚历山大渐渐被休伊说服开始做暴富梦的时候，他们已经被卷进了一个阴谋之中
夜晚，在一座刚入住的高层公寓中，登登（虞梦 饰）和好友居居（张宁 饰）正在阳台上放飞遥控航模。外号“教授”（李大强 饰）和“猴头”（刘彦 饰）的两个家伙正在某房间清点假钞，飞机突然从窗外飞入，两人急忙追打，假钞飞的遍地都是。寻找飞机的登登和居居见到此景，以为是别人的办事机构，并未引起注意。夜深人静之后，假钞走私集团的“夫人”（悟悟 饰）与“打手”不期而至。正关公寓大门的胖姐（董立范 饰）对他们产生警觉，询问中二人更是破绽百出，刚要打电话报警，被“打手”用迷药捂昏。“夫人”闻听有两女孩来过，授意手下人杀人灭口。他们骗出登登和居居，不料在电梯中“教授”露了马脚......
50多岁的出租车司机安德烈跟80多岁的老母住在一起，母亲之前是好莱坞的知名女演员，总是回想昔日的辉煌。他们平淡的生活突然被一个善良热情的美国老头打破了，开始一段搞笑的三人生活。
