i remember seeing this movie once when i was 10 yrs old in 1990. the main character betrayed by his wife and her lover has acting chops . it scared me for years thinking about not actually being dead ,but buried and then to wake up in a coffin the way he did. he ultimately gets his revenge on his wife and her lover and no one is the wiser . great movie .would give more details but don't want to spoil it for you . if you can find it anywhere ,its a must watch