Liz can't figure out how to operate the shower

Upon standing in the shower stall, Liz once again feels confused. There isn't a tap, faucet, or anything at all that could be used to turn the shower on. She feels around on the cool, dark tiles for any sort of lever or button, but can't find anything. She even tries saying "Shower on!" loudly, feeling embarrassed, but nothing happens.

She looks up at the shower head itself. It's a rainfall style head, wide with many jets. It looks to be a very new and fancy model, and Liz starts to get frustrated at her inability to enjoy it, until it clicks. Obviously if there aren't any controls elsewhere, they must be in the shower head itself. It's a bit of a chore to reach it, but Liz can just barely brush the ceiling with her finger tips if she stands on her toes.

Fumbling around with the head, she doesn't find any obvious on switch, and tries reaching above to grab the connector to the ceiling. All of a sudden, a loud mechanical sound is emitted from the shower and Liz feels something wrap around her wrists. She cries out in shock as her bonds tighten. Something she triggered caused the shower head to release wide metal cuffs that are now tightly securing her wrists above her head. "Help, help!" she screams, but remembering the soundproofing and her locked doors, she starts to fear that no one is coming to help.