A man arrives at a
Norms diner in
Los Angeles at 10:10 PM, announcing that he travelled from the future to save the world and needs help from volunteers. He believes a specific combination of diner patrons will help him succeed but, as he does not know which combination is correct, he resorts to try one by one. This is his 117th attempt. His knowledge of patrons convinces some that he is telling the truth. The man coerces Scott, Bob, Marie, and couple Mark and Janet to join. Susan and Ingrid volunteer, and the man initially rejects Ingrid but changes his mind. Police surround the diner, and Bob is killed, while the rest of the group escape when Susan directs them to a tunnel. In flashbacks, some of the group's backstories are revealed. Mark and Janet are teachers whose students are obsessed with their phones. When Mark touches one of his student's phones, all the students follow him threateningly. Mark and Janet take a pair of homemade
"jammers" made by their colleague to temporarily disable cellphones and escape. After Susan's son Darren was killed, she pays for a
clone of him, but she is distressed by the clone's unnatural behavior. Susan is introduced to another service: an AI
deadbot that more closely resembles Darren, and it tells her to follow the man in the diner. Ingrid, a girl with an allergy to electronic devices and Wi-Fi, loses her partner Tim to a
virtual reality he claimed was better than the real world. In the future the man comes from, most people lose themselves in the VR, while natural resources run out, leading to mass deaths. He was raised by his mother in a sunless post-apocalyptic world. She was killed by a drone, which found their bunker after he activated a
VR headset. He reveals his goal: find a nine-year-old boy and creator of the AI that will trigger a
technological singularity. Before the AI comes online, he plans to install a security protocol contained in a
USB drive to ensure AI will act "safely". The group are attacked by a pair of masked men, ending with Marie and one of the men killed. The group take refuge in the house next to their target, and the man warns that "something" will attack them, but it is never the same thing each time. Hundreds of teenagers on the phone surround the house and break in. Mark and Janet use themselves as bait and distract the teenagers. Before they get to the target house, the man, Susan, and Ingrid are confronted by Doug, the surviving masked man from earlier. The man manages to talk Doug down, but Doug is run over by Scott in a stolen car. When the group enter the house, a couple posing as the child's parents attack them. The fake father kills Scott, before the man fatally shoots him, and the fake mother flees. Uncovering a secret tunnel, the man, Susan, and Ingrid find the boy. Susan recognizes the boy as a clone, who is being directed by his programming to create the AI singularity. As they attempt to plug in the USB drive, several repurposed cleaning robots and toys start attacking them. The group is restrained, and the man is stabbed in the chest. As Ingrid prepares to plug in the protocol, the AI talks to her directly. It tells Ingrid that its creation and the future are inevitable, the future man is her son, and that they will have a better life if she embraces this new future. Ingrid plugs in the protocol, forcing the AI to reboot. The survivors, including Mark and Janet, celebrate their success in the morning light. Ingrid comforts the man, but the man realizes something is off and goes back in time. Ingrid realizes that the AI gave them a fake happy ending to keep them compliant. The man returns to the beginning of the night, in the diner. He sits down with Ingrid and tells her they went about it the wrong way. He proposes a new approach: giving everyone in the world the same allergy that Ingrid has. ==Cast==