Joel discovers that his girlfriend has had her memories of their tumultuous relationship erased. Not wishing to be left behind he contacts the inventor of the technique to erase his memories too. The resulting confusion is only compounded when he rediscovers his passion for the girl he has forgotten.

Charles Stuart Kaufman (born November 19, 1958) is an American filmmaker and novelist. He wrote the films Being John Malkovich (1999), Adaptation (2002), and Eternal Sunshine of the Spotless Mind (2004). He both wrote and directed the films Synecdoche, New York (2008), Anomalisa (2015), and I'm Thinking of Ending Things (2020). In 2020, Kaufman made his literary debut with the release of his first novel, Antkind. One of the most celebrated screenwriters of his era, Kaufman has received an Academy Award, three BAFTA Awards, two Independent Spirit Awards, and a Writers Guild of America Award. Film critic Roger Ebert called Synecdoche, New York "the best movie of the decade" in 2009. Three of Kaufman's scripts appear in the Writers Guild of America's list of the 101 greatest movie screenplays ever written.