It's actually a term for black magic practitioners. Belief systems that describe themselves as “Left-Hand Path” often invert much of the symbolism of more 'traditional' Right-Hand Path belief systems, utilizing upside-down crosses, or inverted pentagrams, or pentacles. Such belief systems will also cite sources such as the following Biblical passage:
"And he shall separate them one from another, as a shepherd divideth his sheep from the goats. And he shall set the sheep on his right, but the goats on his left:Could be an interesting hook when it comes to marketing the short, particularly when we start talking about festivals and the need to get inventive posters/flyers printed...
Matthew 25: 32-3"