A midcentury flip turns into a modern day nightmare as Lindsey and Eric uncover an unwelcome surprise behind a locked casita door. The budget balloons as they attempt to fix this sticky situation, but the property will need a big-time investment if they plan to turn a profit. Lindsey stands her ground on her open-concept design, but the unexpected costs may have the final say. Can buyers look past this home's checkered past to see its unique charm?