My Father's Fiancée Lost Her Mind When She Saw Me — Episode 5

A medical PhD and heiress returns home after a decade abroad. Her father's girlfriend shatters a precious medicine, then attacks her and destroys her late mother's keepsake, not knowing who she is. At the family banquet, she exposes the girlfriend's crimes, and the girlfriend is jailed--then escapes to murder her, who takes over the empire.