Lillian Smith leads an unexceptional life, writing obituaries and killing time with her inattentive husband and disconnected son. Then she meets David, a handsome stranger, in a coffee shop. Lured into an affair, she invents a new persona, one without strings, deadlines, or brooding husbands.

Lillian has never felt so reckless, unpredictable, or wanted. But as her affair with David intensifies, she withdraws from everything that's real, even her closest friend. When evidence of her life as a secret lover finds its way onto her son's social media, she risks ruining much more than her marriage or reputation.

As lies beget lies, Lillian's two worlds spiral dangerously out of control. And betrayals run deeper than she imagines. Because Lillian isn't the only one leading a double life.