Meet Daniel Losman—an American in Copenhagen, translating books and living a solitary existence. His longtime girlfriend has left him, and the only highlights in his life are encounters with an offbeat artist he thinks he’s in love with and weekends with his three-year-old son, whom he worries has inherited his Tourette syndrome.

When Losman learns of a new drug designed to locate the root of his Tourette's through childhood memories, he’s lured by promises of a cure and visits the mysterious lab that developed the drug. Initially, what he discovers buried deep within his brain rejuvenates him. But the more Losman takes the drug, the more he needs it. Losman steals some of the pills and locks himself away in his apartment, only to quickly find himself trapped inside his own mind. There is a way out of his head, but it will come at a price…

With intelligence and humor reminiscent of Matt Haig's The Midnight Library, The Book of Losman explores the depths one man will go to make himself whole.