RAINING JACKET

The novel revolves around three story lines:-
1. Prof. Mathew
2. Sasi and Amit(college undergraduates)
3. Detectives Govind and Srikant

1.Prof. Mathew:-
He is a professor in an engineering college and is also a recent divorcee. He has absurd nightmares about a man reciting to him old poetry and threatening to kill him, after which he finds himself in the terrace in the morning(presumably sleepwalking to the terrace each time he has this nightmare).
He is also forgetting things at a constant rate so much so that he has completely forgotten what he teaches and has resorted to teaching a mathematically calculated language(which he claims to have created himself) to his students as his courses don't account for much.

2.Sasi and Amit are first year college undergraduates. While wandering around the campus, they meet Hussain, a super senior(one who has graduated college but still stays in the campus) who is also the founder of 'Raining jacket Inc.' which is a startup which, with the help of its device 'Raining Jacket', manages to manipulate people's minds with the AI devices they use like phone, laptop etc to like someone else( most precisely it's clients). Hussain hires them and all of them go through a journey of being fascinating by the extent to which Raining Jacket can manipulate the mind into liking someone.

3. Detectives Govind and Srikant are investigating the murders of a serial killer on the college campus(same as prof. Mathew, Sasi and Amit) who follows a pattern of alternate gender murders. They are also close flatmates whose kids got exchanged when they were born, and they are in the process of accepting their real kids, after swapping them with each other.