Chase Step By Step is saddled with a bad title, but it actually has the ingredients to be a rather interesting kung-fu film. The idea of mixing circus performing (demonstrated in the opening credits) with kung-fu action would seem to be a natural mix, and the acrobatics of performers in the late 70s (and the comedy that was injected into kung-fu films of that era) might have proven this to be a precursor of that style. Unfortunately, while there are a few moments of unique action, the vast majority is slow, blandly choreographed kung-fu with some blatant undercranking meant to make the fights appear faster.
This style of kung-fu, where the opponents often don’t appear to be even attempting to hit our heroes, was quite common in the mid-70s and could be looked past if the plot provided anything interesting. However, what exists of the plot is barely a skeletal structure on which to hang fight scene after fight scene. The relationship between the two leads quickly becomes irritating, with Ling Wing becoming intolerable as the film moves along. Her shrillness certainly doesn’t do the film any favors.
The video quality of the film is rather abysmal at first (particularly in the opening credits, where the image is stretched horribly), but evens out to just being bad throughout a majority of the film. Occasionally the fight scenes find characters wandering in and out of frame, though this is a limitation of a 235:1 being cropped so significantly. The dubbed audio is often ludicrous, but is intelligible enough throughout most of the film.