(I watched in 1.2x speed)
From what I observed (Assuming that Jolly committed all 6 murders)..
- She forged her educational documents, and got married into an educated family
- She was asked/forced to do some Job, which Jolly didn't like, so she faked her job too, and then killed her mother-in-law
- She couldn't digest the fact that her father-in-law giving some share in the house to other family members, then killed him too
- Both Husband and his uncle interfering in her illegal relations, so she killed them too
- To get married to another man for a better life, she killed his daughter and wife too ...
- Her confession is not shared in the series but it was said that she revealed that she has a silent killer personality in her..
- It all started with a single mistake, she wanted a better life, but she didn't care anyone, who she thinks as an obstacle, got eliminated with CYANIDE