Towards Zero, the three-part murder mystery television series directed by Sam Yates, concludes today on Britbox. Originally airing on BBC One in March, the series was adapted by Rachel Bennett from Agatha Christie’s 1944 novel of the same name. Set against the backdrop of coastal England in 1936, after a scandalous divorce, tennis star Neville Strange (Oliver Jackson-Cohen) and his ex-wife Audrey (Ella Lily Hyland) make the shocking choice to spend the summer together at Gull’s Point, the estate overseen by Neville’s aunt, Lady Tressilian (Anjelica Huston). The uneasy gathering is made even more volatile by Neville’s new wife, Kay (Mimi Keene), along with a group of guests including a stoic lady’s companion (Anjana Vasan), a mysterious gentleman’s valet (Adam Hugill), an exiled cousin (Jack Farthing), the family lawyer (Clarke Peter), an inquisitive orphan (Grace Doherty), and a scheming con man (Khalil Ben Gharbia), each with their own secrets and grudges. As tensions escalate, murder disrupts the tenuous peace. A detective (Matthew Rhys), battling his own demons, must piece together the clues in a complex case of jealousy and betrayal and expose the truth before the killer strikes again.

Recently, Keene and Vasan spoke with SciFi Vision about working in an ensemble, inspiration for their characters, and more.

Watch the full interview below and watch Towards Zero, now streaming on Britbox.