Demi Lovato has often spoken candidly about her struggles with addiction and mental health, but her upcoming YouTube docuseries “Dancing With the Devil” may be her most revealing project yet.

The four-part series, directed by Michael D. Ratner, goes deep into the aftermath of Lovato’s near-fatal overdose in 2018, featuring interviews with the singer herself, as well as her friends and family. In a trailer released Wednesday, Lovato revealed that she suffered three strokes and a heart attack during her hospitalization, with doctors at one point giving her five to 10 minutes to live. (Watch the trailer for “Dancing With the Devil” here.)