Nocturnal (2018)

Dexter Harris a marine biologist and devoted family man comes home to find his wife and child murdered during a home invasion He hopes for justice however his familys murderers are sentenced lightly On the edge of a mental breakdown he seeks the help of a psychologist Dr Miranda Miller who diagnoses him with posttraumatic stress disorder After only a couple of visits Dr Millers therapeutic relationship with Dexter is on the verge of becoming compromised by Dexters progressive mental instability Dexter begins to mentally replace his deceased wife and child with Dr Miller and her daughter Finding out that Dr Miller has a husband Kevin Miller infuriates Dexter and sets him on a path of destruction Kidnapping and brutally murdering Raymond Tucker his familys killer he continues on this hunt and kidnaps Kevin Suspecting that Dexter is responsible she races against time to find Kevin before he becomes the next victim