Complex sentence: Across the road at the party Linda sees Terry at the window and thinks it's his ghost urging her to confess to their affair, so she rushes across to Jill and tries to fight her way up to the attic bedroom.
Split into simpler sentences: Across the road at the party, Linda sees Terry at the window and thinks it's his ghost urging her to confess to their affair. She rushes across to Jill and tries to fight her way up to his attic bedroom.