I think I'm becoming possessed by steve buscemi and am sleeping with my wife.
Are you really okay there? Why do you think you're possessed by this actor?
I seem to hear his voice saying bad things about my mother
That is one strange fantasy and you may like it, but it's really not normal to believe in such possession. You have to get help as it may be part of an underlying mental illness and it can get worse.
I can't believe you're saying all this. What a bunch of nonsense.
All I'm saying is that this isn't normal, and it can cause a lot of problems for you and your wife in the future. Why not talk to a doctor about it, they might be able to help and get you into a healthier state of mind!