An estimated 15 million Americans are active in the "swinger" lifestyle. From house parties in suburban Arizona to swingers' clubs in Nashville and workshops in LA, we explore what's at stake when couples test their sexual boundaries and learn to swing.

Lisa Ling goes beyond the best-selling fantasy novel, Fifty Shades of Grey, to explore the real world of BDSM: bondage and discipline, dominance and submission, and sado-masochism. What she finds is a kinky truth far more complicated than fiction.

On June 2, 2007, the body of Hugues de la Plaza was found brutally stabbed in his locked San Francisco apartment. The crime scene had all the characteristics of a homicide but there was no sign of a struggle. Was this a murder or suicide?

Firemen respond to a house fire in West Virginia and discover the charred remains of an adult male. A medical examiner's report finds that he was dead before the blaze had even started. They suspect foul play when they find drugs in his system.

Explores sleep deprivation and sleep disorders. Including reports on a Billings, MT college student convicted of involuntary manslaughter; and a woman killed when a man who admitted he had not slept for 30 hours fell asleep at the wheel.

An investigation into the 1999 scuba diving death of Shelley Tyre while on vacation on the Caribbean isle of Tortola.