A novice private detective is on the trail of a serial strangler in Mexico City.

After a failed marriage, engineer Hector Belascoaran Shayne (Sergio Goyri) decides to fulfill his wish of becoming a private detective. He learns about a serial strangler who leaves a trail of dead bodies, soon after, the psychopath begins taunt him with intimidating notes. A cat-and-mouse game unfolds.—jairhcastillo