This subject line looks like a file name for of the SonyLIV web series A Simple Murder .

Based on the filename metadata:

Meanwhile, Manish’s wife, Richa, continues her own pursuit of the money. Her trail leads her to an escort house as she follows Rahul, the man who supposedly has the 5 crore loot.

Given this, the keyword likely originates from a , particularly for a video file that was “patched” after DRM or initial rip issues.