For anyone who doesn't understand the context: [1] This is a quote from the movie "When a Stranger Calls" [2] 127.0.0.1 is the IP address for "localhost", one's own computer.
A few references:
http://tvtropes.org/pmwiki/pmwiki.php/Main/TheCallsAreComing...
https://en.wikipedia.org/wiki/The_Babysitter_and_the_Man_Ups...