Pray for Death (1985) Sho Kosugi

Sho Kosugi's wife wants to go live in the United States. Sho (Black Eagle, Revenge Of The Ninja, Rage Of Honor) is secretly a ninja though and says that America is too violent and no good can come of moving from the safety of Japan to the Unites States of the Second Amendment. Despite his ancient wisdom though, even this ninja suffers the same weakness as all men - a nagging wife. So they pack their crap and head over to America. I imagine that when Sho is worshipping at the impromptu shrine to his wife after she is murdered that he is attempting to make contact with her spirit so he can drop a big fat "I told you so!" on her!