Door Problems / Door Nob? Okay So The Door..Has No Handle But Still Has Some Mechanism in The...

Okay So
The Door..Has No Handle But Still Has Some Mechanism in The Circular Hole My Dad Claims He "Sealed" The Door And I Need To Open It So I Can Get To The Other Room
( Obvisouly)

I need the door channel for an easy way contained by and out of my drum set
please Help?
Answers:    If he left the latch mech in the door and you closed it, its ruined! Just kid, Simply take a flat blade screwdriver and insert it into the either the plus shaped slot or the one that looks resembling a piece of bread. Which ever one you have, then simply rotate and instigate.
Luck
Tell your dad he is no good, remove the pins from the door and take it rotten the hinges. Vwalla! Instant access! I hope that helps!