Blood Simple is a 1984 psychological thriller about a bar-owner in Texas who is certain that his wife is cheating on him and hires a private detective to spy on her. It was The Coen Brothers' debut film and features many of their odd trademarks.
Chekhov's Gun: Subverted. It's a vital part of the plot that the characters keep losing or forgetting about the various items presented to us, the viewers, as obvious Plot Coupons.
There's also an actual gun, namely the pearl-handled .38 owned by the heroine. The number of bullets it contains is also a Chekhov's Gun.
Cigarette of Anxiety: Meurice, in confronting Ray over what he thinks is his ransacking of Marty's safe, takes a cigarette out of Ray's mouth because "these things are nothing but coffin nails." But right afterwards, as he is walking away, Meurice lights up himself.
DVD Commentary: Parodied. An imaginary film historian Kenneth Loring spouts obvious nonsense about the process by which the movie is made.
Even Evil Has Standards: Seemingly played straight with Visser's refusal to murder the couple. Averted later when he has no problem killing them to protect himself.
Evil-Detecting Dog: Inverted. Abby's dog's happy reaction is what makes her realize Marty's in the house.
Instant Death Bullet: Subverted. Played straight when The private eye shoots Marty. but later shown to be a rather horrific aversion when he regains consciousness just in time to be buried alive
Ironic Death: Subverted. When Ray thinks of a way how to dispose of Marty's body, he throws a glance at the incinerator, the very place he himself was meant to end up in. To our surprise he doesn't go through with the idea.
Pre-Mortem One-Liner: Delivered by the victim. After Abby shoots him and says "I'm not afraid of you, Marty" (she hasn't seen that it's Visser and believes it to be Marty back from the dead), Visser bursts into laughter and proclaims: "Well Ma'am if I see him, I'll give him the message."
Psycho for Hire: Visser initially comes across as little more than a buffoonish, washed-out private investigator, but he turns out to be a murderous double crosser who's happy to play hitman if the price is right, and then some.
Re Cut: The Coens have quipped that this is the first film in Hollywood history for which the Director's Cut actually REMOVES material.