Perpetual optimist Claire Harte-Mathias and her disabled husband, Jon, run a successful foundation to help people with spinal cord injuries. One night, Claire witnesses a woman leap to her death from a bridge, and the tragedy sparks murky childhood memories that leave her confused and frightened. As Claire becomes obsessed with trying to understand the power the haunting memories have over her, she's torn between blocking them from her mind entirely and trying to unearth their source. Putting both her marriage and self-image on the line, she struggles to uncover the truth, only to discover that the past, present, and future are connected in ways she never dreamed.