'HLN Investigations' documentary details the disappearance of Lauren Spierer

Lauren Spierer was last seen on June 3, 2011.

BLOOMINGTON, Ind. (WTHR) - A new documentary about the disappearance of Indiana University student Lauren Spierer premieres this weekend.

It's an hour-long episode of the HLN Investigations series "Real Life Nightmare."

It details the last time Lauren was seen, June 2011, after a night out with friends in Bloomington.

The series walks viewers through the investigation, interviews with those who knew Spierer and the mystery still unsolved eight years later.

The episode is entitled "Night of No Return" and airs at 8 p.m. on HLN.