Gwen Stefani's obsessive fan reaches her father's house

Los Angeles: A Gwen Stefani's fan is tracking her every move, lying in wait outside her parents' house, and leaving creepy letters and gifts for her, according to a restraining order filed by the rocker's father.

Dennis Stefani filed documents requesting protection from a man named Richard Portnoy, reported TMZ.

Dennis said he and his wife are terrified of Portnoy. He even made face-to-face contact with him at his house and read a letter to him about his feelings for Gwen.

The 45-year-old singer's father said Portnoy has information about when and where Gwen gets medical treatments and attempted to make contact with her during an appointment on March 16.

Dennis was granted the restraining order -- which protects Gwen, Gavin Rossdale, their 3 kids, him, and his wife Patricia. Portnoy has to stay 100 yards away from them.