Lamb To The Slaughter Mary Maloney Analysis

I am going to analyze how Mary Maloney from Lamb to the Slaughter, Mrs. Birling, from An Inspector Calls and Angela from the Legacy were able to keep up appearances despite their life´s realities.
First of all, Mary Maloney simulated appearance despite the fact that she had killed her husband. She acted as a harmless, loving and devoting housewife. The way in which she maintained her home, the manner in which she arranged for the daily return of her husband from work and her physical appearance indicated her inoffensive. Furthermore, the ability that she had to make up all the events for the police and persuaded them to eat the leg of the lamb revealed how deceptive Mary´s appearance was.
Secondly, Mrs. Birling kept up appearance pretending