Three cliches blended into one good mix.

This movie took three typical locales for murder mysteries and made them flow together perfectly; The luxurious Hotel, The cruiseship and the spooky old mansion.

Act One: The Murder takes place in the Hotel.
Act Two: The heroes are on the cruiseship pursuing the leads while attempts are made on their lives.
Act Three: The climactic showdown in the gloomy old mansion.