Liam Pennywell is a man of unexceptional talents, plain demeanor, modest means and curtailed ambition. At age 60, he's been fired from his teaching job at a second-rate private boys' school in Baltimore, a job below his academic training and original expectations. An unsentimental, noncontemplative survivor of two failed marriages and the emotionally detached father of three grown daughters, Liam is jolted into alarm after he's attacked in his apartment and loses all memory of the experience. His search to recover those lost hours leads him into an uneasy exploration of his disappointing life and into an unlikely new relationship with Eunice, a socially inept walking fashion disaster who is half his age. She is also spontaneous and enthusiastic, and Liam longs to cast off his inertia and embrace the joyous recklessness that he feels in her company.