Obsession
Another wonderful example of a horror movie where reasonable people are thrown into wild circumstances and ask relevant questions and share important information with other characters. Makes the viewer empathize with them that much more. It's like modern horror filmmakers have internalized decades of people shouting at the stupid characters in these movies. Refreshing.
Side note - Andy Richter's music instrument shop is busy enough to support 4 staff members per shift? In this economy??