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.
不靠谱神探“满天飞”（贾冰 饰）PK嫌疑人天团（喻恩泰、蒋梦婕、刘桦、于洋、李倩、牛信信、冯鑫垚等饰）！ 倾国倾城的一代名伶被暗枪杀害！头七之夜，私家侦探满天飞和众位嫌疑人被劫持在一家戏院。号称“疯子”的神秘花脸带手下将他们团团围住，强迫满探长必须在 四小时内查明真凶，否则，就将现场所有人杀死，祭献美人亡魂！ 倒计时开始！人人都有秘密，人人都在演戏，神仙斗法，密室寻凶！谜底中藏着谜底，反转后再度反转，爆笑中引发惊悚，一层层谎言，将真相逐渐揭开……
出身于破碎家庭的家聪（陈家乐 饰），与演艺路上怀才不遇的单亲妈妈佩怡（周家怡 饰）成立了一家可以提供“出租家人”服务的公司。 一次偶然的机会，家聪发掘了沉迷于演戏的临时演员志光（曾志伟 饰），并诚邀他加入“出租家人”行列，志光爽快答应。 志光加入后又遇上喜欢跳舞的包租婆芳芳（恬妞 饰），阴差阳错下两人出演“临时夫妻“，并与家乐及佩怡变成“一家人”，谁知这个临时家庭却在服务过程中发现了埋于深处的秘密?? 究竟什么才算是家人？最可贵的关系又是什么？导演刘伟恒透过本故事让观众作深入的反思。
