When Poppy discovers unanswered messages from a charming stranger in her late sister's dating app, she makes an impulsive choice: She'll meet him, just once, on what would have been Dandelion's fortieth birthday. It's exactly the kind of wild adventure her vivacious sister would have pushed her toward. When he meets the intriguing woman who calls herself Dandelion, their connection is undeniable, and he can think of little else. As their relationship deepens, Poppy finds herself trapped in a double life she never meant to create. Every moment with Jake feels genuine, electric, and totally right—despite the fact they're tangled in deceit. As the lines between grief and love blur, Poppy faces a choice: keep her sister's memory alive through her lies, or risk everything for a chance at her own happiness?