sentences:  Laura eventually begins to go insane, plotting against Greenlee and ultimately guilts Leo into a "proper" ceremony, where Leo comes to his senses and turns Laura down.As he gives her back his ring, Greenlee, who was trapped by Laura in an air duct, sets off the sprinkler system in an attempt to get help.The entire wedding party ducks for cover except for Leo, who feels cleansed of Laura and is ready to win Greenlee back.