A couple built a spiritual business to help people find true love. Now, former followers are sharing their disturbing practices in this docuseries.

This four-part documentary series follows the story of India Oxenberg’s perilous journey through the dark and criminal world of the notorious self-help-group-turned-sex-slave-cult NXIVM.

What started in 1975 with the disappearance of 20 people from a small town in Oregon, ended in 1997 with the largest suicide on US soil and changed the face…