After their lives fly off the rails, getting back on track takes everything they have left. Davis Winger has it all. A respected engineer who designs roller coasters in theme parks across the country, he is deeply in love with his wife and has a beautiful young daughter and a happy home. Until an accident strikes on one of his rides. Nothing fatal-except to his career. And to his marriage, when a betrayal from his past inadvertently comes to light. In one cosmically bad day, Davis loses it all. His sister, Molly, is at a crossroads herself. She's coasting through a dire relationship with an incompatible man-child. And she's a journalist whose deeply personal columns about mothers and daughters are forcing her to confront the truth about her own mother, who abandoned Molly and Davis years ago and disappeared. For these two siblings, it's just a matter of bracing themselves for one turbulent summer in this redemptive and painfully funny family drama about making the best of the sharp turns in life-those we choose to take and those beyond our control.