San Diego is renowned for its sunny weather and beautiful beaches, but it has its dark side. It is the location of one of the largest mass suicides in American history. Thirty-eight members of the Heaven's Gate cult left their bodily "vehicles" hoping for their souls to be taken aboard an alien space ship traveling behind the Hale-Bopp comet. Now, decades later, it looks like an offshoot cult is following the same pattern. One of the victims is the sister of private eye Cliff Knowles, a sister he hasn't seen in years. He has trouble accepting the conclusion of the police that it's a suicide. His investigation turns into a bittersweet family reunion when he comes to know his disabled niece whom he last saw when she was an infant. He's determined to see justice done for her sake.