Spirits knock and tables tip for Maggie and Kate Fox, two teenage sisters who convince people they can talk to the dead with their mysterious rapping noises. What begins as a clever prank traps the girls in their lie as neighbors beg for the chance to receive messages from dead relatives.
When their older sister Leah realizes the money-making potential of the scam, she takes them on the road to bamboozle newspaper editors, politicians, and the public at large. As their fame grows, each sister pursues a different goal. Maggie loves the attention. Leah seeks wealth and influence. Kate comes to believe in her own powers.
Then Maggie meets Elisha Kane, a dashing and romantic Arctic explorer who offers her a chance to better herself — but only if she will turn on her sisters and give up spirit rapping forever. Caught between two worlds, Maggie must decide where her loyalties lie.