I assume by "socket" you mean an outlet or plug-in?
Do the outlets have power on all the time, and the switch does not turn them off and on?
Or are the outlets dead all the time? If dead all the time, have you looked in the breaker box for a tripped breaker?
Normally, when a room is wired like you indicated, the top plug-in at the outlet is the one that is switched, and the bottom one is live all the time.
I suspect you may need to call an electrician on this one.