Yest episode showed Anna has died and his lawyer comes with his last will..the property is to be divided into 6 people and not 5 (his wife, 3 sons and 1 widow daughter)
A young girl is shown from 1st episode sitting silently and watching the family members...none of them can see her...she is shown only to the viewers...the 6th person among the shareholders for this property might be this young girl.