Comparisons to the Agatha Christie Murder on the Orient Express were made which are valid. While the original Murder on the Orient Express was a masterpiece the 2017 remake was incredibly awful. This movie falls in between those two films. I have never thought that Adam Sandler was slightly funny but as others have indicated the chemistry between him and Jennifer Aniston, his wife in the movie, was the best part of the film. Sandler plays a police officer who keeps failing the test to become Detective. They end up on a yacht in an impromptu Anniversary trip. Anniston seems to be far more astute as a detective than her husband after murders occur on a private yacht. Billed as a comedy it fails to live up to that with some stale sight gags and Sandler comments that are intended to be amusing but aren't. Of course, there has to be the predictable incompetent Interpol gendarme chasing the wrong people for the crimes. Even with all the shortcomings the film is an old fashioned mystery that keeps the viewer guessing and well worth the time invested to watch.