Mumbai: The trailer of the Tamil crime series 'Regai' is out. The series premiering on November 28 is written and directed by Dhinakaran M. However, the core concept of the crime series is based on a plot created by renowned crime writer Rajesh Kumar. The almost two-minute trailer features multiple mystery deaths. With all the victims dead in what look like accidental incidents, the audience is left to wonder how the investigation makes its way to the killer. The lead character Vetri is played by Bala Hasan. The series also features Pobalam Pragathesh, Vinothini Vaidyanathan, Sriram M, Anjali Rao and Indrajith E. Rajesh Kumar. It is produced by S. Singaravelan under SS Group Production House. The series will stream on Zee5.