Tales from the Darkside (1984)

S1E2 I'll Give You a Million

Two wealthy, elderly gentlemen enjoy betting on insignificant topics for vast sums of money. One day, Williams proposes to his friend Blaine that he can have a million dollars in exchange for his immortal soul. Blaine agrees, but soon learns he has terminal cancer. Terrified, he attempts to reclaim his soul with more cash, but Williams demands an even higher price. Ultimately, Blaine succumbs to his illness. After his death, he returns devoid of a soul, startling Williams into a heart attack. In the end, the Devil arrives to collect what is owed from both men.