The film tells the story of how, in post-war Spain, Narcisa (played by Aria Bedmar), a novice with supernatural powers, arrives at a former convent, now a school for girls, to become a teacher. As the days go by, the strange events and increasingly disturbing situations that torment her will eventually lead her to uncover the terrible web of secrets that surround the convent and haunt its inhabitants.

　　Driving home late at night during a heavy rainstorm, Glen experiences car trouble. Near where his car gets stuck, he spots a house, knocks on the door and is greeted by an oddly friendly middle-aged man, Arthur, and his younger wife, Cyndi. The strange couple pours him a drink, and then more drinks, followed by an unexpected offer that Glen can’t refuse. Elsewhere, a young woman, Katie, is feeling emotionally weighed down by a secret romantic arrangement that feels like a textbook case of gaslighting. And at the same time, in a nondescript research facility, medical professional Julie begins questioning her role in a bizarre experiment, fearing that she’s doing more harm than good.

　　99 Songs is a musician’s quest to understand his purpose and passion. It is a journey of heartbreak and redemption, of loss and faith; an ode to the timeless power of love and music. 99 Songs is co-written by A.R Rahman. He also composed the original score and songs.

　　前途無量的女主廚Almut（弗洛倫絲·皮尤 Florence Pugh 飾），遇上失婚男子Tobias（安德魯·加菲爾德 Andrew Garfield 飾），一次邂逅，改變了余生。就在兩人相愛成家之后，一個突如其來的真相，也將撼動他們幸福的生活……