None.

A masked killer carries blunt objects dripping with blood in several scenes. The killer stalks and murders several people in the movie, often by hitting them with a metal pipe, stabbing them with a kitchen knife or the pointed end of an umbrella. The murders typically occur offscreen though bloody weapons and bleeding or dead bodies are seen in several scenes.

A woman threatens a man with a stun gun/taser.

Two men chase and tackle a masked man.

A man strangles another while he's in bed.

Two men fight, choking and hitting each other with fists and various other objects.

A family tries to fight off a stalker. This sequence contains several scenes of violence where people are grabbed, chased, hit with objects, stabbed, strangled, etc.

About a dozen uses of profanity, most mild, though there is a series of stronger profanity used in one scene at the beginning. [Based on English subtitles]

Two characters are seen sipping from a can of beer.

A suspense/thriller movie containing many suspenseful scenes though no horror:

A woman believes she is being followed.

A woman discovers a masked killer hidden in her apartment.

A shabbily dressed and presumably homeless man grabs another man's leg.

A woman's young children disappear off the street. She frantically looks for them before finding them locked in a car with a mentally ill man.

A car follows a mother and her children home.

A masked maniac stalks a family, trying to get into their house, grabbing the children, et cetera.

A man has disturbing nightmares.

A man scrubs his hands until they start bleeding.

A man suffering a breakdown smashes furniture with a baseball bat, scaring his family.

A man gets pushed up against a ledge on the roof of a building.

A man discovers dead bodies wrapped in plastic.

A woman is burned alive in a house fire.