Elliot decides to erase his past, but changes his mind when it's going to cost him his best friend.

Elliot decides to erase all memory of Liz, his ex, using Lemosyne Ltd’s AI-based memory reconfiguration service. He discovers too late that Tom, his Personal Counselor AI and best friend, has to be erased for the process to complete. Elliot fights the process to save Tom's life, but in the end, Tom decides that he can’t watch Elliot suffer, just to save his own existence. Much later, Elliot has woken into a new life, but when he goes on a date, it’s with his ex.