Tony Jose Alula is the son of Jose Alula. Jose Alula used to be a detective in Mexico. He had to leave Mexico and come to Kerala because of a gangster named Sambai. Years later, his son has taken over the office, and it wasn’t a profitable venture for him. In the midst of this dry run, Tony hits a jackpot when he manages to find a missing pet dog of his girlfriend’s neighbor. How that event eventually changes his whole world is what we see in The Pet Detective.