A former tennis prodigy makes an explosive allegation against her former coach. After the allegation, everyone is forced to reconsider what they thought they knew about their past success.

Ella Lily Hyland, Aidan Turner, Manon Azem, Jessica Darrow, Harmony Rose Bremner, Tom Varey, Maria Almeida, Amar Chadha-Patel, Steffan Rhodri, Elizabeth Berrington, Anna Chancellor, Rosie Dwyer, Matt Barkley, Bastian Antonio Fuentes, Lorenzo Richelmy, Archie George, Julia Westcott-Hutton, Mike Wood, Guy Robbins