The Big Boy House

You whisper to one of your friends (Bob) "run upstairs and open the door" he then proceeds. The music increases volume and the rest of your group follow behind nervously. You are now being chased by a man with a hammer up the stairs. You find the door and sprint over to it but its locked, unthinkingly you bash your fists into the door repeatedly and opens. You think to yourself "where is Bob". Another hammer man across from the stairwell starts speaking in an unfamiliar language, but he is holding something. You look closely and he is dragging bob by the hair and he is screaming in pain with a cuts all over him. What do you do?