Twins are said to share a bond that can defy scientific explanation. Some say that the connection forged in the womb allows twins to feel each other's pain, or even communicate via ESP. For Ursula and Sabina Eriksson, their bond took them on a bizarre trip - one that involved attempted suicide, superhuman strength, reality television, and even murder.

The Swedish Eriksson twins made headlines in 2008 after a series of strange events took place in the United Kingdom. The truly bizarre story and its aftermath has left authorities and physicians puzzled. What exactly happened that caused the twins to snap? Did they really experience a shared psychosis?

Ultimately, the only people who can know what happened to the Eriksson sisters are Ursula and Sabina themselves. But their strange case is darkly fascinating all the same.