Since childhood, successful New Jersey realtor Yvette Rollins' friend Celine has helped her with all life decisions. But no one can see Celine, and the only person who hears her is Yvette. A serious car accident shatters Yvette's body and exposes the crumbling façade of her seemingly perfect life. Her loyal twin, Anna, jumps in to help care for her three-year-old nephew, Max, while Yvette is in rehab. To Yvette's dismay, the accident has also silenced Celine.
When Yvette returns home, Anna shares a recently discovered letter from their absent father, revealing the existence of a real Celine, a third sibling who died in the womb. Their father performed a Vodou ceremony and believes that Celine's soul lives on in Yvette. Yvette is relieved to know Celine is real, while Anna has mixed emotions. Anna feels she's spent her life competing with Celine, so is relieved that she's gone.
As Yvette recovers Celine returns, causing Anna to fear for Yvette's stability and Max's safety. Anna uses an old family journal of Vodou spells to launch a desperate scheme to "rescue" Max from his mother. Celine warns Yvette that everything she holds dear is at risk. Who will Yvette believe—Anna, the sister she can see and touch, or Celine, the sister who has never steered her wrong?
