Cassie Ross carries the emotional scars from her mother’s suicide, which happened during her childhood. She firmly believes her father was responsible for her mother’s death. Her older sister, Laura, has always supported their father, leading to Cassie’s long-standing estrangement from her family. Upon learning that her father has suffered a severe stroke, Cassie sees it as an ideal chance to return home and avenge her mother. She confides in her mute and incapacitated father about her intentions to ruin her sister and stepmother and eventually kill him, aiming to dismantle her fractured family and claim their wealth. However, Cassie’s quest for revenge proves more complicated than anticipated, as hidden family secrets threaten to unravel her entire scheme.