Complex sentence: Back home, Marge realizes that their ceiling fan is old and unsafe, so she decides to do more clean up jobs to get money for a new fan, starting from cleaning the scene of a "suicide-murder".
Split into simpler sentences: Back home, Marge realizes that their ceiling fan is old and unsafe, so she decides to do another clean up job to get money for a new fan. Her new job is to clean the scene of a "suicide-murder".