Complex sentence: Kevin, after his parents death, marries Agatha (Bridget Armstrong) and lives happily in his Uncle's house until the morning of his sixtieth birthday, when he finds his wife dead and the Claw lying next to her.
Split into simpler sentences: Kevin, after his parents death, marries Agatha (Bridget Armstrong) and lives happily in his Uncle's house. Until this morning, the morning of his sixtieth birthday, when he found his wife dead and the Claw lying next to her.