Stranger by the Lake - unwatchable

Not too much to say about the hyped but in my view un-watchable Stranger by the Lake - billed as a murder mystery, sure, and there is a murder - we see it about 25 minutes into the film - but in my view the first 30 minutes of the film are nothing more than gay porn - I have no problem with the fact that the murder takes place at a gay beach cruising spot and I have no problem with graphic sex in films if the sex scenes advance the plot or develop character in some way but in this film the plot and characters seem to be convenient vehicles to which to hitch the sex scenes. Maybe it's realistic, maybe not - I don't know and don't especially care - but by 30 minutes I knew I didn't care about the murder, the murderer, or how he'd be found out if at all.