Chapter 8 - Mole Temple - Laser barrier

[Karma]

Hi.

Can anyone help me with this? I'm stuck at the part where there's a laser barrier in front of me which requires a key to remove it. It's the area just after you're rushed by some of the mutated vamps + the flameball throwing vamps and you're character says something along the lines of "You think that's going to stop me?".

I feel I've checked absolutely everywhere and maybe I'm missing something obvious. It's seriously delaying me and I've not been able to find any information regarding this anywhere.

Any help greatly appreciated.