When a spy posing as a politician's wife learns her lover has been murdered, an old assassin friend joins her on a quest for truth — and vengeance.

Set in the world of elite tennis, the drama portrays Justine Pearce as a one-time rising star whose sudden success at 17 took her and her coach Glenn Lapthorn to the semifinals of the French Open.

After a scandalous divorce, a tennis star, his ex-wife and a volatile mix of guests converge at a coastal estate. When murder strikes, a troubled detective must unravel the truth.