After turning 65 and bereaved of her husband, Umiko visits a cinema for the first time in decades. A shocking, life-changing event awaits her. When she meets Kai, an art student majoring in film, Umiko realises that she wants to make a film. She realises that she is on the side of "the people who want to make films"...
Lured by the waves that stir her heart, the 65-year-old dives into the sea of film!

65歳を過ぎ夫と死別し、数十年ぶりに映画館を訪れたうみ子。そこには、人生を変える衝撃的な出来事が待っていた。海(カイ)という映像専攻の美大生に出会い、うみ子は気づく。自分は「映画が撮りたい側」の人間なのだと……。
心を騒ぎ立てる波に誘われ、65歳、映画の海へとダイブする!!