不久的将来，艾伦将用一台能够模拟记忆的机器重温他的记忆。他发现自己能够修改记忆，并试图创造一种新的记忆，让他可以和已故妻子柯琳生活在一起，防止导致他死亡的事故发生。

In the near future, Alan will relive his memories with a machine capable of simulating them. He discovers that he is capable of modifying them and tries to create a memory where he can live with his late wife Coline, preventing the accident that caused his death.