Good, Bad, Ugly - Part 1

Sargunam, a middle-aged businessman, is found dead in his house under mysterious circumstances. After the STF takes up the case, they get to know that due to the lithium-ion particles found in his body, his death could have occurred due to pacemaker explosion. However, when a medical report confirms that Sargunam's pacemaker was intact, DSP Kadhir suspects foul play and begins his investigation.