Every year, there are usually a number of horror films based on or inspired by some sort of true story. The upcoming Relativity Media thriller House at the End of the Street is not based on such a story, but, if you're familiar with any number of grisly crimes in Los Angeles, it very well could be. In honor of this terrifying tale, arriving in theaters September 21, I was invited to take part in a unique tour of infamous L.A. murder houses, all of which were in very different neighborhoods scattered throughout the City of Angels.

Our evening began, fittingly, at the Museum of Death on Hollywood Boulevard, where we were shown a number of bizarre "artifacts" from the Charlie Manson killings and the Heaven's Gate mass suicide. There were also some of the most sickening images I have ever seen, taken by an L.A. woman and her...