In the Shadow of the Moon (2019)

In 1988, several people simultaneously hemorrhage to death in Philadelphia, disintegrating their brains and causing massive blood loss. Police officer Thomas Lockhart and his partner, Maddox, investigate the case with Lockhart’s brother-in-law, Detective Holt. Lockhart concludes that the deaths are connected when he finds similar puncture wounds on each victim. Lockhart and Maddox find an assault victim with the same wounds; she describes her assailant as a black woman with a wounded hand before dying. Lockhart and Maddox find the suspect and chase her into a subway, where she subdues Maddox. When Lockhart confronts her, the suspect reveals details about his life, including that his wife will give birth that day. She predicts her own death just prior to a struggle, which ends with a train striking and killing her. Although confused about the many unexplained details, the police close the case. Meanwhile, Lockhart’s wife dies in childbirth.

Nine years later, an apparent copycat begins another killing spree. Lockhart, now a detective caring for his young daughter Amy, can find no apparent motive or connection between the victims. Lockhart traces keys retrieved in 1988 to an aircraft manufactured in 1996. Naveen Rao, a physicist, insists this is proof of time travel, but Maddox and Lockhart ignore him. After tracking the copycat to an airfield, Lockhart is shocked to find the same suspect from 1988, who is alive and has not aged. She unintentionally kills Maddox and takes Lockhart hostage, again revealing knowledge about his life she could not know. After warning him off, she disappears.