Mario Murder Mystery is a film based off Agatha Christie's murder novel And Then There Were None. , featuring characters from the Super Mario series.
One evening, Mario got an invitation to a dinner at Goomba's new Mansion. When he got there, he saw a lot of his friends and rivals as well. It was dark when everyone was gathered at the dinner table. Suddenly there was a black-out and a sound of pain was heard. When the lights came back on, Goomba was found squished to death. There was panic and the exit was locked and the phone did not worked. Some one in that house was a murderer but who was it and who will be the next to go?