Throughout two millennia of Christian history, the great heresies have tried to destroy the Faith by perverting the truths that Christ taught the apostles. Beginning in Jesus's own time with the betrayal of the arch-heretic Judas, and continuing through the centuries, waves of error have threatened to swamp the Church, only to break and be dashed upon the Rock of Peter.

However, though they may be defeated for a time by saints, popes, councils, and even force of arms, as long as sin and error remains in our fallen world, these heresies can never be truly vanquished. This condition is the Judas Syndrome; it betrayed Christ unto death, and it afflicts His Church and the world unto this day.

In these pages, author Tom Colyandro investigates seven of the most harmful, most seductive, heresies in Church history, and reveals that they are indeed with us once more.