Three members of a family were found dead in their rented house near Aavikara Muthappan Temple in Kanhangad on Saturday morning.
The deceased were identified as Suryaprakash, 62, who ran a watch repairing firm at Kanhangad, his mother Leela, 80, and wife Geeta, 55.
The police recovered a note reportedly written by Suryaprakash. The couple leaves behind three children.