Good direction still seemed to matter in the late 60s and even into the early 70s in Taiwan and HK. The camerawork is very good here, apart from being much too dark in places. The intercutting of viewpoint changes, the sound design and the acting all work together in a very professional manner which is noticeably lacking in movies made later.

Hsu Feng is young and very pretty here, and she heads a very good cast.

Unfortunately, the mixture of these great ingredients just doesn't work. Twnety minutes in, I found myself not caring about any of the characters, including Hsu Feng, despite being in obvious peril. Pity.