Well is about a movie like 2000 and 2005

A group of teenage is going on a travel in a big house and they drunk and having sex and they fell a sleep then 1 suspect in kiliing them 1 by 1 butt he leave a message that only 1 off them will survive the morning the end of the movie is like a boy and a girl 1 off them killed himself and after that the killer opens the house door and lett the last 1 alive go home I don’t really remember the name I try to find it on my own butt still nothing… Please if some 1 know it text me on Facebook Valentin Vidinei Thank you

Maybe the movie Kill Theory (2009)?

Could it be “House on Haunted Hill” - 1999?