movie about lsd

two teen (they are valentine's) thinking a serial killer follows them in a forest, after party. they are running all night. boy is dying.
but there is no serial killer. this is just lsd effect.
at the end of this movie: the girl is swinging on a swing.actually there was no killer. the girl is lsd influenced so she was killed her bf.

whats this movies name??_?

Toad Road? - https://en.wikipedia.org/wiki/Toad_Road

I haven't seen it i just know it's about drugs and there's woods and probably murders since it's categorized as a horror.

no

Shrooms (2007)

not shrooms

The Dead of Winter 2008.