When eccentric innkeeper Celeste Vane passes away, she leaves her crumbling lakeside estate not to one person, but to two strangers who have never met: Elara Chen, a burned-out Chicago architect who values steel and efficiency, and Milo Thatcher, a sentimental local carpenter who believes every beam holds a memory. The catch? They have one summer to restore the historic property together. If they succeed, it becomes a community arts center. If they fail, it sells to a luxury developer. Over ten weeks, each room they rebuild forces them to confront why Celeste chose them—and whether two people built on entirely different foundations can construct something lasting together.