Here is a spin....
You make verbal, but not visual contact with a male, he is in obvious distress. Sounds like either severe pain, or labored breathing, hell maybe both. The house is shut up tight as Fort Knox. He says he can't come to the door, no keys are outside, and he wants you to call for a locksmith.
What do you do?
Assuming you called the locksmith, who has a 45 min ETA, after 10min of waiting you lose verbal contact with the guy? Now what?