UNEXPECTED?

A Guy Rishi who is a Decent Guy fallen love
with a Girl, But Unexpectedly Happened That
he used to Carry a Gun and Started his
Journey to find a person ??
The past and Present story of Rishi is used to narrate in his own style to balance everything which Happened in his whole Life.
Why didn't he carry A Gun??
Didn't Her Love was acceptable??
Who he is that Unknown person??
Rishi becomes a Serial Killer??
What happened in the Past??
To know that Read in his unique style with full of Lovable + Bad attitude Method...
EXPECT THE UNEXPECTED ??