Wendy Spector was the mother of Marc and Randall Spector, and the wife of Elias Spector. After Randall died in a drowning incident, she was traumatized and became physically and psychologically abusive towards Marc, blaming him for Randall's death. She eventually passed away.
There are roughly one-sh*t billion tropes so PLEASE look through them before adding one. Otherwise add what you like. ADDITION: PLEASE read through the trope description provided before submitting something. It's not a huge deal but too often people submit characters that don't fit just because they misinterpreted the title...