The Holby City website have uploaded this photo, with Joseph as Luc Hemingway, and a synopsis from next week's episode - 'When The Hangover Strikes'

Eddi is suffering with the effects of the previous night's New Year's celebration. She doesn't get much time to feel sorry for herself, though, when she finds Rachel, a hung-over and freezing woman who has passed out. Eddi takes her under her wing, but comes to loggerheads with Luc when he disagrees on her course of treatment, creating a huge rift between them.