When Dillon’s father Harry races back to their tiny apartment to rescue his child, the apartment is in rubble and there is no sign of his son. Three years later, thousands of miles away in Dublin, Harry spots a six-year-old boy in a crowd and is convinced he is Dillon. Desperate to find his son, Harry’s obsession tears apart his marriage to Robin, exposing shameful secrets that lead to the truth of what happened to their son on the night he went missing.
Emma and Jesse are living the perfect life together, until Jesse disappears in a tragic helicopter crash on their first wedding anniversary. Four years later, Emma has found happiness again and is about to marry her best friend when Jesse resurfaces, turning her world upside down and leaving her torn between two great loves.
Professional photographer Jamie's quantum physicist boyfriend Isaac has gone missing, and is presumed dead. Haunted by his disappearance while attempting to continue with life as normal, Jamie gets more and more wrapped up in figuring out exactly what happened, and is convinced that his disappearance has something to do with Isaac’s research into parallel dimensions. She continues to pursue him until she collides with a shattering revelation.