Chloe is a zoologist, and her husband Arthur is planning to kill her. She wakes on the night before the murder, with a second chance and a plan. She pretends to play along, and she recruits Victor, a close friend, to gather proof that Arthur cheated an insurer and killed others. She also sets a trap that will let the python turn on him.
During the investigation, Chloe learns that Arthur's accomplice is supposedly her long-lost sister, Mia, until a confrontation proves she is a fake planted by Victor. Victor then drops his mask. He engineered her rebirth so he could bring his dead wife back, and he planned to use people to extract neural enzymes. Chloe fights through a series of crises in abandoned warehouses and labs, captures Victor, and watches the law take its course.
