The story takes place in 1998. Nathan (the protagonist’s name) is a scientist in his thirties. He lives in a villa and is working on a revolutionary and highly prized project for a very important space institute, concerning a mission to explore Mars. With his project nearing completion, he has hired Amelia to organize the parties he is throwing for his colleagues to announce the end of his project and his increased presence at the office. Nathan has surveillance cameras in his home to protect his project.

Before the party, while working at home, Nathan receives a package in the mail that must be opened immediately. He opens it and finds a VHS tape. When he watches it, he sees a video filmed by the two surveillance cameras in his home, showing him how he will be killed at 9:00 p.m. that evening. In the video, one of the guests at the party, who is impossible to recognize, kills Nathan while he is on the phone. The only thing Nathan knows is that Amelia is not in the house at the time of the murder, because he sees her outside when he is killed in the video.

It is 8:30 p.m., and the guests are arriving. Margot, Nathan’s girlfriend; Vincent, the assistant director of the research and development department where Nathan works; and Alexander, one of Nathan’s colleagues. Everyone is acting very fake around Nathan. During the evening, the events leading up to the murder unfold exactly as they did in the video Nathan watched. Nathan now believes in the video and the murder it showed as a premonition.

Nathan remembers that Amelia is innocent and goes to talk to her. He teams up with Amelia, and later that evening she tries to help him discover the identity of the murderer.

Throughout his interactions with the guests, Nathan sees himself transformed, using powers he never knew he had, showing sincerity in his feelings and a certain courage and self-protection when he demands answers from his colleagues’ suspicious behavior in order to understand what is going on.

After several unsuccessful attempts and strategies (to discover the identity of the murderer before the time of the murder), Nathan sees that it is 8:58 p.m. and tells the guests that he is going to his office to call the director. Nathan then finds himself at the final location where everything will be decided, but will he make it out alive?

Knowing his fate, Nathan is one step ahead of the assassin this time. Nathan looks in the reflection of a window in his office and sees someone entering with a knife in their hand. Nathan grabs the base of his phone. Once the person is close enough, Nathan hits them with the phone base, causing them to collapse to the floor. He discovers that it is Alexander. But it is Amelia who comes to save Nathan from a second assassin, Vincent, who was about to kill Nathan when he saw that Alexander had missed his shot. This is why it was so difficult for Nathan to find the assassin’s identity. He was looking for a single assassin when there were two, and both Nathan and Amelia suspected these two colleagues of Nathan, who were extremely jealous of him and the project he was working on.

While Margot didn’t appreciate Nathan’s behavior at the party and leaves him, it may be the beginning of a beautiful love story between Nathan and Amelia, two people who love each other for who they are, as the police arrive on the scene after Amelia’s call.