Complex sentence: The patriarch of a seemingly normal nuclear family returns home one day with a small white rat; however, the eponymous animal soon has an adverse effect on his wife and children, influencing them into enacting their darkest, most hidden desires.
Split into simpler sentences: The patriarch of a seemingly normal nuclear family returns home one day with a small white rat. The animal soon has an adverse effect on his wife and children, influencing them into enacting their darkest, most hidden desires.