A shaggy-dog-story/horror/suspense/comedy/drama about a Las Vegas magician who has committed a series of murders and been sentenced to death. The film follows the final hours prior to the execution, leading up to the execution itself. In the twist ending, the lights flicker during the execution, and when they come back on we see that the condemned man and the executioner have suddenly and inexplicably swapped places. The magician, now dressed in his full stage get-up, flicks the switch that sets the execution device going, and shouts "Ta-da". Then the credits roll.
EDIT:
Another idea:
Comedy skit: A spoof of The Big Bang Theory and Breaking Bad in which a drug dealing Walter White/Sheldon Cooper hybrid character pedantically berates his customers for not knowing the difference between amphetamine and methamphetamine
EDIT:
Another idea:
Horror-comedy. A group rents a cabin for a vacation. One bedroom of the cabin is haunted, the rest of the cabin is completely normal. The occupant of the haunted bedroom appears more and more insane to the others as the nature of the hauntings becomes more and more severe throughout the week and allows him diminishing amounts of sleep.
EDIT:
Another idea:
Comedy skit: A spoof of The Big Bang Theory and Breaking Bad in which a drug dealing Walter White/Sheldon Cooper hybrid character pedantically berates his customers for not knowing the difference between amphetamine and methamphetamine
EDIT:
Another idea:
Horror-comedy. A group rents a cabin for a vacation. One bedroom of the cabin is haunted, the rest of the cabin is completely normal. The occupant of the haunted bedroom appears more and more insane to the others as the nature of the hauntings becomes more and more severe throughout the week and allows him diminishing amounts of sleep.