Shot in black and white and unfolding in real time, the 71-minute movie follows her, her husband Bill (Timothy Spall) and her guests, including old friend of Jenny (Patricia Clarkson) with her boyfriend Gottfried (Bruno Ganz), banker Tom (Cillian Murphy), Bill's university buddy Martha (Cherry Jones) alongside pregnant partner Jinny (Emily Mortimer) as they wander outside of reserved conversation into revelations and farcical drama.