If the name Torturing Nurse doesn't ring any bells, here's a few old posts to help you get the picture:
Ben Hogue, NOIShanghai and torture (link)
Video: Torturing Nurse at Canart (link)
Bored? Watch Torturing Nurse (link)
Torturing Nurse in The Guardian (link)
To see the group in action in Shanghai, you can check out the latest NOIShanghai event, taking place in a couple of weeks up at 696 (details here). There'll also be a new Torturing Nurse t-shirt released soon (here's the old one) if you want to show your love for the city's premier noise-makers and, naturally, there have a new release coming out soon. Then again, they have a new release about once a week.