When you've binge an entire season (or more) of a show and you forget about important plot details from earlier episodes. Often occurs because you've consumed so much content that you can't remember certain characters, dialogues, or scenes that you've seen just mere hours ago.
Alex: "Wait, why is Anna sitting down with Detective Blake? She doesn't even know him."
Sam: "What are you talking about? She worked a case with him back in the second episode and he told her to come see him if she needs to discuss anything. I think you're suffering from binge-term memory loss."