Three young Muslim men, part of a terror cell, are making a bomb in a London flat, when they get a call to vacate immediately with their gear. The police have been alerted and they are under suspicion. Asif, Shahid and Mushtaq grab suitcases, the computer, and a cardboard box containing bomb making equipment and bolt out the door. Shahid's getaway car is clamped so the three are forced to escape on foot from the pursuing police. Cornered, they dive into a restaurant on a busy city street. It is the Olympus Grill and dinner is being served to its well-heeled clientele. With the police outside, Asif, Shahid and Mushtaq have nowhere to go. Mushtaq, thinking quickly, declares that they will hold the restaurant goers hostage. The diners are forced to get up from their tables where they have been enjoying the delicious Greek cuisine. They are lined up against a wall. Electra, the young waitress, is also forced to stand in line.
巴比（尼古拉斯·霍普 Nicholas Hope 饰）的生活一直被困在狭小的家庭环境中，与淫威滥施的母亲相依为命，他甚至要忍受与母亲之间不合逻辑的关系。然而，尽管生活环境如此恶劣，巴比却拥有着一项惊人的天赋：可以惟妙惟肖地模仿任何人的声音。一天，一个酒气冲天的老头突然出现，声称是他的父亲，并将他赶出了家门。愤怒之下，巴比闷死了父母，踏上了陌生的世界。他以模仿为生存手段，在遭遇笑料和挫折的同时，也逐渐展现了自己的才华。
意外的机会让他穿上了父亲的牧师服，登上舞台开始模仿各种声音，意外走红，成为了歌迷们的宠儿。与此同时，他也发现了自己与脑麻痹患者沟通的神奇能力，为他的生活带来了新的转机。最终，巴比在这个陌生的世界里找到了自己的真爱，也找到了属于自己的位置。尽管他的早年生活充满了苦难和困境，但他的天赋和乐观的态度让他最终走向了成功和幸福。
