剧情：该电影背景设定在 911 紧急呼叫中心的一个早上。呼叫接线员乔·贝勒（吉伦哈尔饰）试图拯救一名危在旦夕的呼叫者，但他很快发现事实并非如此，而面对真相是摆脱困境的唯一办法。 The film takes place over the course of a single morning in a 911 dispatch call center. Call operator Joe Baylor (Gyllenhaal) tries to save a caller in grave danger-but he soon discovers that nothing is as it seems, and facing the truth is the only way out.