Haute tension

Alexia (Maïwenn) travels with her friend Marie (Cécile De France) to spend a couple of days with her family in their farm in the country. They arrive late and they are welcomed by Alexia's father. Late in the night, a sadistic and sick killer breaks into the farmhouse, slaughters Alexia's family (including their dog) and kidnaps Alexia. Marie hides from the criminal and tries to help the hysterical and frightened Alexia, chase the maniac, and disclose his identity in the end.

High Tension (released in the United Kingdom as Switchblade Romance) is a 2003 French horror film directed by Alexandre Aja (Piranha [2010]), stars Cécile de France, Maïwenn, and Philippe Na1hon.