Throughout the movie, Marie attempts to rescue Alexia from the killer and protect herself from being the next victim. As she follows the killer, she discovers disturbing secrets about Alexia's family and realizes the killer is someone they know.
The movie is known for its intense violence and gore, with graphic scenes of mutilation and death. The ending has also been widely debated and is considered controversial by some viewers.
High Tension, also known as Haute Tension or Switchblade Romance, is a French horror film directed by Alexandre Aja and released in 2003. It gained critical acclaim and is regarded as one of the best horror movies of the 21st century.