On a snowy January morning in 2022, Boston police officer John O'Keefe was found dying in the front yard of a fellow officer's home in Canton, Massachusetts. His girlfriend, Karen Read, was quickly arrested and charged with murder. But what seemed like a straightforward case spiraled into one of the most controversial and divisive criminal trials in recent Massachusetts history.

Was Karen Read a drunk, jealous girlfriend who ran down her boyfriend and left him to die? Or was she the victim of a massive law enforcement cover-up, framed for a murder committed by others inside the house?

This deep-dive episode explores every twist in this extraordinary case: the botched investigation led by a disgraced state trooper, the mysterious Google search for "how long to die in cold" made hours before the body was discovered, allegations of plant ...