About the movie:
ARACHNOPHOBIA, made in 1990, stars Jeff Daniels as a small town doctor ( who has a fear of spiders) who slowly comes to realize that their barn may be the breeding ground for a whole truck load of deadly spiders. Fun job by John Goodman as the “expert” exterminator, although they probably needed Schwarzenegger on this job.
About the cache:
You are looking for an item that represents this poor family's problem. Just reach in the top and feel for it.