I love Tubi Originals movies, they are fun and reasonably well made. The acting can be a bit hit and miss, but it's a Tubi Original so it is what it is.
This movie is one of the better ones with a competent cast, the acting is a little uneven at times, but not so bad that it takes you out of the story.
A pop star is getting ready to take a break from performing, throwing everyone into a state of serious consternation. An attack in a toilet, also a bonding session as well. (It makes sense in context.) Then a yacht trip and the popstar ends up overboard. Sadly she was not wearing her lifejacket at the time. An investigation then takes place and a plucky young woman who was working on the yacht decides to do her own investigation.
The characters are all interesting enough and even though it is clear who the killer is, it's still fun to watch. It is an easy going movie, not much gore, it is what you would expect from a Tubi Original.
