A woman leaves a convent to become a governess to the children of a Army officer widower.

Seya (Sinhala: සේයා) is a 2018 Sri Lankan Sinhala horror film written and directed by Kalyana Chandrasekara and co-produced by A. Parister and Tharanga Athuraliya for Niro Films. It stars an all-female cast of 36 actresses, including, Udari Perera, Dilhani Ekanayake and Menik Wijewardena in lead role along with Deepani Silva, Vishaka Siriwardena and Gayathri Dias. Music composed by Sarath Wickrama. This is Sri Lanka's first all-female featuring movie. It is the 1299th Sri Lankan film in the Sinhala cinema.

The 1st queen of the king dies in child birth, the prince survives. After the 2nd queen, gives birth to a new prince, she plots to kill the 1st prince, so that her son would get the crown after the king. A soldier senses this danger and ousts the prince to a rural village for survival. The village headman adopts the child without knowing the origin of the child. The prince gradually forgets his royalty, and grows up as a skillful and handsome farmer. After the death of the king, the soldier and religious leaders plan to bring the real prince to the crown.

The movie is based on the legend of King Sinhabahu, the son of a lion and a royal princess Suppa Devi.