I remember watching an old movie probably from the 70s about a lab that seemed to be in Alaska with caged monkeys that were being experimented on. I most vividly recall the end where the monkey holds the keys at the door peering through the window at the end. Does this ring a bell for anyone?

A Cold Night's Death (1973 TV) (http://youtu.be/XG8r26MuRIk)

Thank you! Thank you! I knew I wasn't crazy! LOL