I watched on catch-up. Hmmmmmmm. It was a bit "neat" in places . She saw that man for a second in hospital (while she's got a head injury / possible concussion) but she recognises him in a nightclub The girl in the hospital bed , in full make-up. She recognises her from the Mothers photos on the mantlepiece. The girl outside the hospital cubicle. She's her briefly (again in full nightclub make-up) but recognises her enough to challenge her story in her room.
I love programmes of that era (80s throwback) but I'll see how it pans out.