Complex sentence: When Andy is fast asleep, his doll "Chucky" now possessed by Charles's soul toys with Maggie before causing her to fall from the kitchen window to her death below after she stopped him from getting updates on the news about Eddie.
Split into simpler sentences: When Andy is fast asleep, his doll "Chucky" now possessed by Charles's soul toys with Maggie. He then causes her to fall from the kitchen window to her death below, after she stopped him from getting updates on the news about Eddie.