Pressing the boundaries of both the psyche and the heart, Sam and Holden embark on a dangerous journey that will test the limits of love. Sam Wintry’s life used to be almost perfect. She was engaged to her childhood best friend and high school sweetheart, Tyler Marks, planning an amazing cross-country honeymoon during her college break. But after a hit-and-run leaves her in ruin, she begins seeing Tyler’s fractured, ghostly presence, and her family believes she’s losing her mind. Not until she completes their journey, stopping along the way to scatter Tyler's remains, will Tyler be able cross over. Only...is Sam ready for him to leave her? When the black sheep of the Marks' family, Holden Marks, returns to check on Tyler's case, Sam convinces him to give her his brother's ashes. Despite their shaky history, she needs him...plus, he owes it to Sam and his brother. What she doesn’t count on is Holden’s relentlessness to go on the trip. On the road, Holden realizes just how unhinged Sam has become. Dealing with her psychosis forces him to confront his dark past, making it harder to keep secrets hidden that should remain buried. Especially from Sam, the only woman he’s ever loved. And as Sam starts to unravel the truth, she begins to question if the brother she's unwillingly falling for again is in an even darker place than her.