Complex sentence: Rachel and Noah eventually find Samara's corpse in the well and bury it, but this releases a corporeal, grotesque form of Samara's spirit and she kills Noah as per the rules of the curse.
Split into simpler sentences: Rachel and Noah eventually find Samara's corpse in the well and bury it. Unfortunately, this releases a corporeal, grotesque form of Samara's spirit and she kills Noah as per the rules of the curse.