Thrillers and horror films like No Country for Old Men use coin flips, roulette...

https://harpersgreatchat.zenbloomer.com/posts/is-the-coin-toss-in-em-no-country-for-old-men-em-actually-fair

Thrillers and horror films like No Country for Old Men use coin flips, roulette cylinders, and rigged games to ramp up tension by putting fate in the hands of chance. These devices force characters into cruel decisions where control feels out of reach