Hack!

Hack is a 2007 American horror film directed and written by Matt Flynn. The film centres on a group of students who, while on a field trip, become victims in a snuff film, and stars Danica McKellar, Jay Kenneth Johnson, William Forsythe, Sean Kanan, Juliet Landau, Justin Chon, Travis Schuldt, Adrienne Frantz and Gabrielle Richens. The film was released in the UK on July 20, 2007 before receiving a US release on December 11, 2007.

At night, while the group settle in and have dinner with Vincent and Mary, Mr. Argento finds he has to leave the island to retrieve some equipment. However arriving at the boat, Mr. Argento finds J.T. has been murdered. Meanwhile the students have a bonfire on the beach. Q leaves the group only to be startled by a figure dressed up as a clown. When he tells the others the incident is ignored and everyone goes to bed, not knowing Mr. Argento has also been murdered. The following day, Sheriff Stoker Tony Burton arrives on the island in search of a missing hunter. He questions Vincent and Mary, but both deny ever seeing him, so the Sheriff leaves. Soon after, Tim and Sylvia sneak into the forest to have sex, but are quickly attacked by the killer who murders Tim with a chainsaw. Sylvia is chased through the forest but is eventually caught, before being locked in a cage in an underground dungeon. At dinner, Emily becomes concerned with the various group disappearances, before she realises the phone lines are down, however Vincent and Mary convince everyone there is nothing to worry about. The students again have a bonfire on the beach, while Q decides to try and search for a phone signal. He encounters the clown once again, who swiftly crushes his neck and kills him. With Q now also missing, Emily, Johnny, Ricky and Maddy enter the forest to find their fellow students. Meanwhile, Vincent and Mary are shown watching videos of various murders they have committed and filmed, revealing the couple are making a snuff film.Sheriff Stoker, having become suspicious about Vincent and Mary returns to the island, however he is quickly murdered by the couple with an axe. Ricky and Maddy search the forest, but Maddy is soon knocked unconscious by Vincent and Mary while Ricky flees. Maddy awakens sometime later tied to a tree where she encounters Willy William Forsythe who sets her free and tells her she can escape on his boat. While chasing Ricky through the forest, Vincent and Mary

Source: Wikipedia