Daniel Radcliffe shares a bathtub with Jon Hamm in the trailer for their new series, A Young Doctor’s Notebook!

Based on the short stories of Mikhail Bulgakov, the Alex Hardcastle-directed show stars Jon, 41, as a post-WWI doctor struggling to come to grips with his self-doubt. He often interacts with his younger self (Radcliffe) and makes hilariously sarcastic observations.

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A Young Doctor’s Notebook premieres in the UK on December 6th!