The facade of a good daughter-in-law, how long does it last?

Sources:

1. Netflix show https://www.netflix.com/title/81564452
2. The Indian Express (Oct 16, 2019). Koodathayi deaths: How a 17-year-long charade of a loving wife, mother, and 'pious' woman ended. https://indianexpress.com/article/explained/jolly-joseph-koodathayi-deaths-kerala-serial-killer-6070753/
3. The News Minute (Oct 14, 2019). Deconstructing Jolly: How the Koodathayi woman meticulously built her web of lies.  ...