TV REVIEW: A MOTHER’S SON — TENSION, TALENT, AND TROUBLED FAMILY SECRETS

What would you do if you suspected your own child of murder? That’s the question at the heart of ITV’s psychological thriller A Mother’s Son, a two-part drama that combines domestic unease, moral panic, and Suffolk coastal mist in equal measure.

Written by Chris Lang (Unforgotten), the series boasts a first-class cast — Hermione Norris, Martin Clunes, Paul McGann, and Nicola Walker — all tangled in a story that begins with a brutal killing and spirals into the torment of maternal doubt.

A Disturbing Discovery

The story opens in chilling fashion. On a windswept stretch of the Suffolk marshes, a teenage girl runs for her life, blood on her hands and fear in her eyes. Her death shocks the small coastal village, and soon suspicion ripples through its prim façades and pastel kitchens.

At the centre is Rosie (Hermione Norris), a newly remarried mother trying to merge two families — her teenage children and those of her new husband, Ben (Martin Clunes) — into a fragile domestic truce. When news of the murder breaks, Rosie begins noticing subtle changes in her son, Jamie (Alexander Arnold): strange behaviour, sudden temper, and a late-night laundry session that leaves her uneasy.

The moment she discovers Jamie’s supposedly “lost” trainers hidden under his bed — spattered with what looks very much like blood — Rosie’s world tilts. From then on, A Mother’s Son becomes less a whodunit and more an exploration of denial, instinct, and the limits of a parent’s love.

The Dilemma of Every Parent

It’s an agonising scenario. What would any parent do — rush to the police, or protect their child and pray it’s all a terrible mistake?

The drama cleverly plays on that tension. Rosie’s fear isn’t just about guilt or innocence; it’s about losing her son to something she cannot control. Her husband Ben is not Jamie’s father and struggles to understand her silence, while Rosie’s ex, David (Paul McGann), seems too distracted and defensive to help.

Rosie’s isolation becomes the story’s pulse. She’s trapped between two families, two loyalties, and two unbearable possibilities: that her son is innocent and doomed to suspicion, or guilty and lost forever.

Performances That Carry the Weight

Hermione Norris, best known for Cold Feet and Spooks, anchors the series with quiet anguish. Her performance balances fear, guilt, and maternal instinct, though at times the script overindulges in emotional repetition — the wide-eyed panic, the whispering denials. Still, she conveys the paralysis of a woman unable to face the truth.

Martin Clunes, playing against his usual genial type, gives Ben a stiff, uneasy compassion. He’s the practical voice of reason in a house where reason is rapidly disintegrating. There’s a restraint to Clunes’s performance that works beautifully — the weary recognition that love doesn’t guarantee trust.

Paul McGann, as Rosie’s ex-husband David, brings subtle melancholy to a man torn between resentment and paternal duty. He’s a slightly scruffy contrast to Rosie’s polished middle-class life — more fishing boat than Farrow & Ball.

And Nicola Walker, ever the quiet powerhouse, does wonders with limited screen time. As the empathetic but underwritten friend, she radiates emotional intelligence and sorrow. One can’t help wishing the camera had followed her character more — Walker’s gaze tells more story than most dialogue ever could.

Flaws in the Fabric

While A Mother’s Son is gripping, it isn’t flawless. Some of the plot hinges feel far-fetched: the blood-stained trainers left unwashed, the improbable coincidences, the near-silent police presence. One wants to shout, “Just ask him!” long before Rosie finally confronts her son.

The finale, too, underwhelms slightly. The tension builds so effectively that when the truth arrives — Jamie’s guilt confirmed, his confession delivered with trembling remorse — it lands with less force than expected. There’s no twist, no shocking reversal. Only a long, inevitable sadness.

Still, Alexander Arnold (Skins) delivers a strong performance as Jamie, the jittery, confused teen burdened by guilt and fear. His scenes with Norris are the show’s emotional core: the quiet terror of a mother and son bound together by a terrible secret neither can bear to speak.

Atmosphere Over Action

Director Ed Bazalgette drenches the production in atmosphere. The windswept beaches, grey skies, and reed-filled estuaries give A Mother’s Son a haunting visual texture. It’s a place where beauty conceals menace — the perfect metaphor for the story’s moral fog.

Even the score adds to the claustrophobia, a steady hum of unease beneath the domestic veneer.

Verdict: A Moral Mystery Worth Watching

A Mother’s Son may not reinvent the crime drama, but it deepens it. Its suspense isn’t built on car chases or courtroom fireworks, but on the question of how far love can bend before it breaks.

Hermione Norris’s Rosie is both infuriating and heartbreaking — the embodiment of every parent’s nightmare. Clunes, McGann, and Walker provide able support, turning what might have been a simple ITV thriller into something genuinely poignant.

Flawed, yes. But thoughtful, haunting, and quietly devastating.

★ ★ ★ ★☆ (4/5)
A Mother’s Son reminds us that the scariest crimes aren’t committed by strangers — they’re the ones that hit closest to home.