A flyer and a simple “Do you like good music?” from a promoter led to an obsession. At the time, Rebecca Williams was 17 or 18 and went to a concert for a band she had never heard of, Beats Antique.

Kristina, a belly dancer from Kazakhstan, was in the middle of her act at Birch nightclub in Goa when everything around her suddenly changed. One moment she was performing, the next the fire alarm ...