Originally Posted by puma1277
Turn off the breaker for that plug, go around the house and check for any light switch that may be on that circuit, in could be in the switch box.
if there are switches that he checks that ARENT on that breaker, well thats a bad situation. by telling him to check "all around the house", he will surely encounter a switch that isnt on that breaker. plus, neutrals are usually wirenutted in a switchbox, which could be the culprit, but he stated that other outlets worked. chances are it is the outlet in series right before the defective one.
start with turning off the breaker, and finding out what outlets ARE on it. verify with a tester to make sure there is no power to the outlets, then pull them out, one by one and check all the conections. you have a loose neutral somewhere.