Decent watch at best, won't watch again, and can't recommend outside a Bad Movie Night.
While it is great to see young ladies pretending to be high schoolers in bikinis...it's not a unique selling point by any means.
The movie also takes far too long to establish things and get onto the actual action.
The traditional 2nd act action and 3rd act resolution is highly reduced and not satisfying for me.
For the murder mystery aspect of it, there is no character approach to finding the murderer. No cops, detectives, or gang of kids with a talking dog actively searching for the killer, the investigation isn't part of the story, it's just sort of a tacked on addition to the story.