many years ago i watched a black&white movie with some people in a house getting killed one by one and a detective figuring it out i think. but it was a comedy. i tried everything to figure out the name but cant get anywhere. cant someone help me?
We definitely need more details. This is an extremely common plot.
You said it was black and white. What decade did it appear to be?
Was the detective a Sherlock Holmes type? Sam Spade type? Typical Scotland Yard type?
Can you remember any of the specific murders? These type of stories often revolve around a particular theme.