Part VIII: The interrogation is interrupted by flooding in the station. Onoff sees a body bag arriving and tries to escape.
Part IX: Onoff is recaptured. Back in the station, it's interrogation #3; Onoff keeps changing his story and can't remember what happened late that day
Flashbacks give us fragmented clues, but we do get to see Onoff with his beard !
Part X: Interlude; Onoff is allowed to sleep. He thinks it was all a nightmare until he awakes to find himself still in the station