Single mother Jennifer Marsh (Diane Lane) is an agent working for the FBI Cyber Crime Division. Her daily job is to monitor the Internet and find any criminals who steal credit cards and other possible harm. In an operation to encircle and suppress credit card thieves, Jennifer accidentally entered a website called KillwithMe, which broadcast the whole process of a kitten being tortured and dying through video. Jennifer intuitively felt that there must be something shady behind the website. She tried to track the IP and server, but ultimately found nothing. It seemed that the opponent she was facing had a rather complicated background. Soon, the website updated its content. In the picture, a man was tied up, and the website claimed that the more visitors there were, the faster the man died. Jennifer and others watched the man die, and she decided to rescue the mastermind at all costs, but she also got herself involved in this vortex of death...