Meredith Fox has avoided her family's annual summer reunion on Martha's Vineyard ever since the accident that took her sister's life. But this year, she's determined to attend her aunt's wedding and face the memories she's been running from.

Enter the Assassin Game, a beloved Fox family tradition where wedding guests are split into teams and compete in a week-long game of tag. Meredith is paired with Wit, her sister's former boyfriend, and as they navigate the game together, old feelings resurface and new connections form. Through laughter, competition, and healing conversations, Meredith begins to find her way back to her family and herself.