Barbara Stanwyck & Fred MacMurray in Double Indemnity (1946, dir. Billy Wilder)
“Murder is never perfect. It always comes apart sooner or later. When two people are involved, it’s usually sooner. Sometime, somewhere, they’ve got to meet. Their emotions are all kicked up. Whether it’s love or hate, it doesn’t matter. They can’t keep away from each other. They may think it’s twice as safe because there are two of them. But it isn’t twice as safe. It’s ten times as dangerous.
They’ve committed a murder. And it’s not like taking a trolley ride together where they can get off at different stops. They’re stuck with each other and they’ve got to ride all the way to the end of the line. And it’s a one-way trip and the last stop is the cemetery.”