William and Melissa Smith have three gorgeous children, William, aged 7, Andrew, aged 4, and a new little girl that they named Carole Anna. Francine and James Robins are a young couple trying to start a family but when their baby is stillborn, they are crushed. Meanwhile, Melissa Smith gave birth to Carole Anna at the same time. Francine begins to suspect that she had been lied to and senses a conspiracy in which her baby was swapped out with the Smith baby and that the Smith baby was the one that was stillborn. She eventually convinces her husband, James of this and they hatch a plot to kidnap Carole Anna and claim her as their own. When they successfully make off with Carole Anna it is up to local law enforcement and the FBI to track the kidnappers down, but when that fails, William, a detective with the NYPD, along with his partner, Timothy Porter, takes matters into his own hands.