I'm a big Johnnie To fan.
Sadly, this is quite unlike anything he's ever made before: utter trash!

Some girl owes a loan shark a ton of money and an MMA fighter takes her under his wing, rather than pimping her out of selling her off to cover what she borrowed.
It sounds like an interesting drama only, the MMA fights are really bad, the male lead comes off as a chimp on a crack-energy drink high and, well, I just really hate all those singing shows!
Worse: there's utterly needless wire-fu - and I mean utterly useless: some girl spinning and floating in the air while playing a guitar in front of judges!

Honestly, pretty much everything about this rubbed me the wrong way and, having zero interest in a film about singing competitions when there's one literally on right now in another room(!), I couldn't motivate myself to even make it to the hour mark.

Definitely not recommended.