The following is a list of deaths in the French horror film High Tension, released in 2003. To clear up possible confusion, the killer is Marie. The Man is the alter ego she uses when committing the murders.
|Name||Cause of Death||Killer||On-Screen||Notes|
|Alex's Father||Face slashed with straight razor, decapitated with bookcase||The Killer/Marie||Yes|
|Alex's Mother||Throat slashed/hands cut off with straight razor||The Killer/Marie||Yes|
|Tommy||Shot with shotgun||The Killer/Marie||No|
|Jimmy||Axed in chest||The Killer/Marie||Yes|
|The Man||Head bludgeoned with rock, 18 times with fence post covered in razor-wire, suffocated with plastic sheet||The Killer/Marie||Yes||Marie's alter ego|
|Motorist||Disemboweled with concrete saw through windshield||The Killer/Marie||Yes|