Public relations worker Stu (Colin Farrell Colin Farrell) keeps a secret lover from his wife. In order to avoid checking his wife's phone bill, he sneaks into the street phone booth to make a phone call to date his lover. Unexpectedly, the moment he entered the phone booth, the phone rang. Although I don't know who made the call, out of habit, Stu picked up the receiver. The gloomy and monotonous male voice sounded immediately, warning Stu not to hang up, or there would be blood on the street! Stu of course ignored the mischievous warning and was about to walk out of the phone booth. At this time, there was a gunshot and a passer-by had fallen to the ground. Stu was too scared to move. The police heard the news, but they didn't believe Stu's explanation, and Stu became the main suspect in the shooting. For a while, the whole city was a sensation, and Stu's wife and lover came when they heard the news.