But behind the popular film is a real-life murder that captured Hollywoods attention for over 40 years.

Its a notorious Hollywood mystery one Connelly is taking head-on once again.

Connelly first began investigating the Wonderland murders for his popular documentary Audible podcast in 2021.

MGM+ archival photo

Once, he thought he caught Thorson in a lie about doing drugs with Richard Pryor.

We were freebasing, and he was right.

I went back to the tape and he didnt say crack, Connelly toldRolling Stone.

People still know about this case.

How much does it bother you that people got away with murder?

Thorsons answer is simple: I slept with one eye open.

The Wonderland Massacre & The Secret History of Hollywoodpremieres September 8 on MGM+.