MOVIE ABOUT MISSING GIRL – PLEASE HELP

I’ve seen the trailer before but not the film and I really need to find out what it’s called!

It’s a thriller I believe; in the trailer, there are 2 girls (late teens/ early twenties) travelling together I think and one goes missing/ gets abducted (this is not Taken). The friend is sunbaking on an empty beach when she realises the other girl is gone. There’s also a scene with a bridge where I think she sees the car or the man who maybe took her friend?

Please help lol need to know.