Gutterballs (2008)

AKA: –
Directed by: Ryan Nicholson
Starring: Alastair Gamble (Steve), Candice Lewald (Lisa), Mihola Terzic (Sarah), Dan Ellis (bowling alley janitor)
Country: Canada
Language: English
Runtime: 01:35:48
Genres: Gore-Gruesome-Splatter, Sexual-Violence against Men, Rape-Sexual-Violence against Women, Transsexual, Revenge

Plot – Spoilers:
Two rival groups of friends are in competition with each other over random shit and also try to outdo one another in being obnoxious and despicable. The local bowling alley is where they hang out and fight each other. After a nasty outing one night, one of the girls Lisa heads back to the alley to retrieve her handbag but instead gets brutally raped by the rival gang. The two groups return the next night, as does Lisa. Only this time, someone begins killing them off one by one.