Before | [s1e1] The Day

The episode ends with a jarring revelation for Outie Mark. He is approached by a man who claims to be Petey—his "work friend" whom he shouldn't even know exists. Petey has "reintegrated," a dangerous and supposedly impossible process where the two sets of memories begin to merge. He warns Mark that Lumon is not the benevolent corporation it claims to be, leaving Mark (and the audience) to wonder what his work self is actually doing in the basement. If you'd like to dive deeper into the lore, I can: Explain the Petey experiences. Detail the Four Tempers the employees are refining.

A woman named Helly (Britt Lower) wakes up face-down on a conference table in a sterile, windowless room. She is disoriented, her memory a total blank. A voice through an intercom begins a "survey," asking her basic questions she should know—like her name or where she was born. To her horror, she realizes she doesn’t know. [S1E1] The Day Before

We kick off our Severance season 1 rewatch with "Good News About Hell" The episode ends with a jarring revelation for Outie Mark