Great premise. You push your husband overboard on a boat (murder) and then you have the rest of the day to set up events so not only will you be found innocent but also it will be considered a murder. The reason? Sweet sweet life insurance checks.
You will have to play many loops to find stuff out about passengers, their schedules, and how to manipulate things. However the ending felt pretty unsatisfactory for me. Why? I guess because I didn't really plan it to happen it just sort of happened during the investigation. It felt like, "oh, this is what the game wants." Cool idea. You can get it for cheap on steam sales nowadays, still worth checking out if it floats your boat.