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to my knowledge the door was never locked. and if they arent expecting anything, thats a snazzy McFun suprise round. Malachai will open the door and move forward as a single action, casting Shock and Awe on those outside, before 5 foot stepping out of the doorway.
If they are suprised, spell takes affect, no saving throw, spell resistance works. Shock and Awe : 1 creature per level affected, no two of which can be more than 30 ft apart, 1 swift action, range 25+5 per 2 levls (35 feet), duration 1 round. Gives flat-footed creatures -10 to their next initiative check. Hehe. as flat-footed lasts until your first action... hehe.
As it is a swift spell, my other spell for this round will be charm person on anyone who looks like a rogue, or appears unnaffected by the shock&awe... in other words, someone immune to flat-footedness. DC for this is Will 16 +1 for spell focus enchantment, total Will save DC 17. If nobody fits the description, my action instead will be to move back into the room 30 ft. instead of the 5 foot step forward and out.