This week, we're heading to Los Angeles in the 1980s, where a shocking murder inside a quiet suburban home would remain unsolved for years.

When respected nurse Sherri Rasmussen was found beaten and shot to death, detectives believed they were looking at a burglary gone wrong. But as the years passed, cracks began to appear in that theory. Evidence was overlooked. Leads were missed. And one person, hiding in plain sight, seemed to escape suspicion entirely.

We'll explore the life of Sherri Rasmussen, the investigation that stalled, and the astonishing breakthrough that finally exposed a killer no one expected.

So grab a drink, settle in... because this case proves that sometimes the most dangerous person isn't a stranger at all.