"The Vacationers" is a novel by Emma Straub that follows the Post family as they embark on a two-week trip to Mallorca, Spain. The family includes parents Franny and Jim, their adult children Emily and Luke, and Franny's best friend Charles. Each character grapples with personal issues and secrets, creating tension and drama throughout the vacation. As the story unfolds, the family's interactions reveal their struggles with love, relationships, and the complexities of family dynamics. The picturesque setting of Mallorca serves as a backdrop for their journey of self-discovery and reconciliation, highlighting the challenges of modern life.