For years, a short stretch of flyover in downtown Bangalore drew sniggers and jokes—right at the top, believe it or not, was a traffic signal where vehicles from two ramps crossed. When the signal was done away with, authorities put down a clumsy divider of concrete blocks which always fell out of place because motorists rearranged them to squeeze through. Film-maker Pawan Kumar remembers driving up the Richmond Circle flyover on a rainy night with trepidation. The experience led to his 2016 Kannada film U-Turn—a supernatural thriller in which two-wheeler riders who sneaked past the median met a mysterious end.