Cabin #757

You and your friends planned your annual trip to Virginia Beach. 
Everyone agreed to avoid the hustle and bustle of the crowded Oceanfront  hotels, 
opting for a cozy cabin offered at a cheap rate, in a heavily wooded corner of a local campground. 
Upon entering the cabin you find members of your group who had arrived a day earlier have been 
taken captive and restrained in the cabin. Before you can think, the door closes and locks behind you. 
You have 60 minutes to free your friends and escape before you all become the victims of the 757 Cabin Killer!