From the moment we laid eyes on Madonna—with fishnet stockings, trademark headband and fingerless lace gloves—she had us under her spell. But she also attracted the attention of a very dangerous man. In 1995, Madonna’s life would be put on the line when a man with a laundry list of mental health problems would come knocking on her door.

David Letterman's stalker, who fantasized that she was romantically involved with him, is the focus.

This is the story of a stalker that refuses to leave her alone despite two trials and a conviction. Gwyneth Paltrow tries to protect herself and her family from a relentless stalker who travels across country to get close to the woman he is obsessed with. Gwyneth’s personal head of security gives exclusive insight into the private life of the terrified starlet.

Without an enemy in the world 21-year-old actress Rebecca Schaeffer had her whole life ahead of her. She was making a name for herself in Hollywood and on July 18, 1989 she was set to audition for legendary director Francis Ford Coppola. High on life, little did Rebecca know that an obsessed fan had other plans for her that fateful day.

Christina Grimmie was an artist on the rise. Making a name for herself on The Voice and YouTube, little did Christina know that a man was toiling away in silence contemplating a deadly strike.