I can't progress in game. After few minutes in the game, the NPC Otis is required to open door. There's nobody.

The bug is reproducible for me.

Processor Information:
Vendor: GenuineIntel
Speed: 2794 Mhz
4 logical processors
4 physical processors
HyperThreading: Unsupported
FCMOV: Supported
SSE2: Supported
SSE3: Supported
SSSE3: Supported
SSE4a: Unsupported
SSE41: Supported
SSE42: Supported

Network Information:
Network Speed:

Operating System Version:
Linux (64 bit)
Kernel Name: Linux
Kernel Version: 3.8.4-1-ARCH
X Server Vendor: The X.Org Foundation
X Server Release: 11400000
X Window Manager: Xfwm4
Steam Runtime Version: steam-runtime-release-i386_2013-03-25

Video Card:
Driver: NVIDIA Corporation GeForce GTX 470/PCIe/SSE2

Driver Version:  4.3.0 NVIDIA 313.26
Desktop Color Depth: 24 bits per pixel
Monitor Refresh Rate: 60 Hz
VendorID:  0x10de
DeviceID:  0x6cd
Number of Monitors:  2
Number of Logical Video Cards:  1
Primary Display Resolution:  1920 x 1080
Desktop Resolution: 3840 x 1080
Primary Display Size: 23.54" x 13.23"  (26.97" diag)
                                        59.8cm x 33.6cm  (68.5cm diag)
Primary Bus: PCI Express 16x
Primary VRAM: 1280 MB
Supported MSAA Modes:  2x 4x 8x 16x 

Sound card:
Audio device: Realtek ALC892

Memory:
RAM: 3949 Mb

Miscellaneous:
UI Language: English
LANG: en_US.UTF-8
Microphone: Not set
Total Hard Disk Space Available: 755821 Mb
Largest Free Hard Disk Block: 328885 Mb

Installed software:

Recent Failure Reports: