http://tvtropes.org/pmwiki/pmwiki.php/Recap/OrphanBlackS01E05ConditionsOfExistence
When terrifying evidence suggests the Orphans are part of a sinister ongoing experiment, Sarah’s suspicions turn to Paul, Beth’s boyfriend. But her probing inadvertently triggers Paul’s own investigation, bringing him dangerously close to the truth. Meanwhile, paranoid Alison piles on a whole new level of complication.
This episode contains examples of:
- All Love Is Unrequited: Sarah reads some of Beth's letters to Paul and concludes that while she was in love with him, he wasn't in love with her. She wonders why he stayed.
- Vic might genuinely be in love with Sarah, but she clearly wants nothing to do with him.
- Beneath Suspicion: Paul works for whoever created the clones.
- Destroy the Evidence: Donnie burns the papers in his box before Alison can find them.
- Fingore: Vic's boss cuts off his finger for not returning his money.
- Impostor-Exposing Test: Paul, already suspicious of Sarah, gets confirmation that she's a fake when she can't tell him about the last marathon Beth competed in.
- Internal Reveal: Vic learns that Sarah faked her death and is still alive.
- Meet Cute: Cosima, meet Delphine. Delphine, Cosima.
- Mistaken Identity: Vic mistakes Alison for Sarah.
- Mr. Fanservice: Paul
- Oh, Crap!: When Sarah finds a strange piece of metal in her mouth and realizes that Paul was Beth's monitor.
- A minor one from Alison and Cosima when they found out that Sarah slept with Paul. However, they brush it off quickly.
- Porn Stash: Alison finds Donnie's collection of adult films. While she believes that Donnie simply moved the files elsewhere, she can't prove it.
- What the Hell, Hero?: Sarah tells Paul that he caused Beth's suicide because she found out he was monitoring her and demands to know why he did it.
