While on a summer trip with her friends, Megan begins to feel the presence of Sophie, her twin sister who recently committed suicide.

Two paramedics responding to an emergency call find themselves kidnapped by a religious sect whose great obsession is to stop the end of the world by committing suicide and killing people.

A military special operations team, led by a CIA case officer, are on a mission in the harsh and hostile terrain of Afghanistan where they find themselves in a Middle Eastern "Bermuda Triangle" of ancient evil.

Three film students vanish after traveling into a Maryland forest to film a documentary on the local Blair Witch legend, leaving only their footage behind.