By Ariana Bacle
August 26, 2014 at 01:50 PM EDT

Actress Brittany Murphy died of cardiac arrest in 2009, but the upcoming Lifetime movie about the star claims Murphy died of something other than heart problems.

In a trailer for the film, titled The Brittany Murphy Story, Murphy (played by Amanda Fuller) shields her eyes from camera flashes and fumbles with pill bottles as the title screen displays dramatic phrases like “afraid for her life” and “the suspects,” suggesting the film will focus on speculations that Murphy was murdered.

Aside from the actress’s death at age 32, the film will also focus on Murphy’s rise to fame beginning with her role in 1995’s Clueless and her positive relationship with her mother, Sharon.

The Brittany Murphy Story premieres Sept. 6 at 8 p.m. ET on Lifetime.