60s/70s dark comedy — murder and afterlife

I’m trying to remember a dark comedy film I saw on late-night local TV in the early 80s. I seem to recall that it was a color, English-language movie, probably made between mid-60s and no later than early 70s.  The opening credits showed images of big mainframe computers and possibly computer punchcards, so possibly the main character (a man) is a programmer or something related.  I believe he commits a murder — can’t remember if it was his boss, a co-worker, or his wife.  In the end he dies — maybe caught and executed? — and reaches the afterlife.  He’s told that he’ll be reincarnated, but that his next life will be completely insignificant.

That’s all I can remember.  Sorry to be so vague, but this has just recently popped back into my memory and it is driving me crazy!

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