Tales from the Darkside (1984)

S1E6 Slippage

A young graphic designer starts to mysteriously fade from reality. It begins with his paycheck vanishing, followed by his high school not only neglecting to inform him about a reunion but also having no record of him. He comes to the unsettling realization that he’s been drifting through life, effectively “slipping through the cracks.” Even his mother no longer remembers him. Ultimately, his wife and best friend, who is now married to another woman in this altered world, also forget that he ever existed.