A powerful résumé and a charming smile can be the keys to success-but they can also be beguiling tools to mask a cold-blooded killer. Investigation Discovery's (ID) new series Untouchable: Power Corrupts offers an inside look into how a taste for power can turn into a thirst for blood, featuring the perplexing journeys of seemingly good citizens to corruption. This six episode series uses chronological reenactments and expert commentary to tell the stories of people whose ambition, authority and sense of entitlement drove them to abuse their power-and ultimately do the unthinkable.