Beetlejuice noticed something was off moments before it happened. He dropped the pizza box and flew to Lydia. 

"Lyds?!" He picked her up off the floor, "Lyds? Oh god, she's not breathing."

"Someone call an ambulance!" Iggy jumped out of her chair and ran over. 

"Wait! No!" Beetlejuice flew over to the couch and set Lydia down, studying her closer. "She's not hurt...she's...just not home. Someone took her." He looked over at Ash for help. "I think someone took her soul."