Saturday is a novel by Ian McEwan. The main narrative takes place over the course of a single day in February of 2003. The protagonist, Henry Perowne, is a neurosurgeon who lives in London. He is married and has two adult children. Over the course of the day, Henry faces personal challenges and moral quandaries as he encounters several highly unexpected events. The novel explores themes of family, morality, compassion, fear, and hope.