The untold story behind Edgar Allan Poe's "The Tell-Tale Heart." Philadelphia, 1842: Poe's cat, Cattarina, becomes embroiled in a killer's affairs when she finds a clue to the crime - a glass eye. But it's only when her beloved "Eddy" takes an interest that she decides to hunt down the madman. Her dangerous expedition takes her from creepy Eastern State Penitentiary to Rittenhouse Square where ...