The Twilight Zone s1e1 - The Comedian

https://dzen.ru/b/am3Gzca3M07ZmLVE Struggling stand-up comedian Samir Wassan meets legendary comic J.C. Wheeler, who advises him to include personal material in his routines. After doing a successful routine centered around his dog, Samir returns home and discovers that not only did his dog vanish, but no one seems to remember that it ever existed. He then finds whatever he jokes about, ceases to exist after the routines. It doesn't take him long before he abuses the ability for self gain.