The Dead Brother I Invented Came Home

She never expected her harmless lie to become her worst nightmare. After fabricating a deceased brother to inherit her grandfather's property, a lookalike stranger suddenly appears, armed with forged DNA tests. It's a trap set by a vengeful former employee and her own grandfather, who lock her in a psychiatric ward to seize the company. Can she find a way to expose the conspiracy from inside the asylum, or will she lose everything to her own family?