Hostel: Part III

Hostel Part III is a 2011 American horror film directed by Scott Spiegel and the third installment of the Hostel film series. It was written by Michael D. Weiss, This is the first film in the series to be neither written nor directed by Eli Roth and the first not to have a theatrical release. Also, this movie redirects the base of the Elite Hunting Club from Slovakia to Las Vegas.

The film starts with a young man, named Travis, going into a hotel room where a Ukrainian couple, Victor and Anka, are currently staying. Anka and Victor fall unconscious after being drugged by the beer Travis gave them. It is then revealed that Travis is a member of the Elite Hunting Club. Victor later wakes up in a cell in an abandoned building, and watches as two guards drag Anka out of her cell.Scott leaves his fiance Amy to go to Las Vegas with his friend Carter for Scotts bachelor party. There, they meet up with Mike and Justin, their other friends. The four go to a nightclub, where they meet Kendra and Nikki, two escorts Carter secretly paid to have sex with Scott. Kendra and Nikki tell the four men about a freaky party they could go to, and the four men take a cab to an abandoned building. At the party, Kendra makes a move on Scott, but he declines and tells her about how he was previously unfaithful with Amy and almost lost her, and he doesnt want it to happen again. Scott wakes up the next morning in his hotel room with Carter and Justin. The three wonder where Mike is, as he isnt picking up his phone. ........

Source: Wikipedia