《反馈》是由埃迪·马森,保罗·安德森,伊万娜·巴克罗,奥利弗·库珀史密斯主演的一部恐怖片，London. Jarvis Dolan is a charismatic host of a radio show named "The Grim Reality", about news and actuality. Loudmouth, fun and ruthless in his speeches and comments, Jarvis is the most important radio star of the moment, entertaining the audience throughout the early morning with his intelligent programs on hot topics. Previous the job, Dolan is required by his boss Norman Burgess to have a brief talk about the fate of the program by the recent poor ratings, that reporting Dolan to accept to his former partner, Andrew Wilde, as co-host, in an attempt to improvement the show. Going they two to the studio, Wilde meets Dolan's assistants, Anthony and Claire, who work making the show behind the micros. But when Dolan tries to start the program while he waits for Wilde, who had to go out a little before to back more later, he finds suddenly trapped by the circumstances: two masked men have assaulted the radio station at gunpoint and kidnapped Anthony and Claire, making him to keep the ...