A killer's on the loose in San Francisco, and the residents of the hilly metropolis are living in terror as the body count grows. So far, the crime's only clues are contained in the cryptic letters the killer's been sending a reporter. Now, a pair of detectives joins forces with the reporter and a priest to stop the mayhem in this action-packed thriller starring Martin Sheen's kid brother Joe Estevez and "Diff'rent Strokes" alum Todd Bridges.