10 Horror Movie Characters Who Knew When To Quit (But Didn't)

What Keeps You Alive follows a married couple, Jackie (Hannah Emily Anderson) and Jules (Brittany Allen), celebrating their first wedding anniversary when Jules comes to learn some unnerving information about Jackie's past involving the death of a childhood friend.

Jackie seemingly smooths it over, but moments later, she shoves Jules off the top of a cliff, leaving her for dead.

And to be clear, this is the end of the movie's first act.

Jules survives the fall but is badly injured, at which point Jackie - who is also revealed to be a serial killer - pursues and captures her.

Jackie then takes Jules back to the cliff and attempts to push her off again, but Jules incapacitates her with a tranquiliser dart and flees the scene in her car.

Jules is basically home free, but a short while down the road stops her car and decides she needs to return to finish her wife off.

Jules confronts Jackie and it costs her dearly - she's once again thrown off the cliff by Jackie, but when a diabetic Jackie injects herself with insulin, she learns that Jules replaced it with hydrogen peroxide, killing her.

The final scene shows a brutally injured Jules laying on the floor before she takes a sharp breath, indicating she's still alive albeit gravely wounded.

Given that Jackie was shown to have called the police to report Jules' "death" after pushing her off the cliff, there's a decent chance she survives, but certainly no guarantee.

Yeah, driving away and calling the cops later was definitely the only way to go here.