"It's fun to do": Jake Lacy opens up about filming his character's death scene in All Her Fault

Jake Lacy takes on the role of Peter Irvine in Peacock’s limited series All Her Fault.

He steps right into the mess at the center of the Irvine family: Peter’s rich, seemingly perfect life hides much more than anyone expects. If you have seen Lacy in The White Lotus or A Friend of the Family, you know he has a knack for playing these layered and complex characters. With Peter, he nails that polished, dependable vibe, but you pick up pretty quickly that he is holding onto some big secrets. As the story moves along, those secrets begin to burst out, and Peter’s decisions push the family drama into complete overdrive.

All Her Fault follows Marissa Irvine, played by Sarah Snook. She is thriving in her Chicago career, and her life seems to be on track until her son Milo vanishes after what should have been a routine playdate. She shows up to pick him up, knocks on the door, and the woman inside insists she has never heard of Marissa or Milo. That is when everything completely falls apart. The search for Milo becomes frantic, and the story just keeps twisting, with old wounds, hidden truths, and long-buried lies coming to the surface.

In a recent chat with Collider, Lacy opened up about shooting Peter’s intense death scene. He talked about the nerves involved and how it all came together on set. It is a huge moment for his character, almost like everything Peter has been hiding finally crashes down around him. That powerful scene ties together the show’s biggest ideas about deception, justice, and the inevitable fallout when the truth finally hits.

Jake Lacy on filming Peter’s death scene in All Her Fault

Jake Lacy sat down with Collider and dug into what it was like to shoot his character’s brutal death scene. It was the emotional core of the series, the turning point that everything else revolves around. Lacy talked about how tricky it was to play it right, to make Peter’s downfall feel real without losing any of the tension the story needs.

“The death scene is a lot of… it’s fun to do. It’s because you get to figure out what’s too much and what’s not enough and how to communicate this thing and work out the… his panic as he realizes like, oh, this is it. And also the realization that Marrisa has orchestrated this. I guess it’s this moment of tension of like gasping and then really like letting your whole body sink and seeing how long you can keep that like immobile, paralyzed stillness before you have to breathe again.”

Peter Irvine’s death in All Her Fault is more than just the end of a character. It is the final act in a story built on old secrets and years of dodging the truth. Viewers finally see the full weight of what Peter has done. Desperate to protect his wife, Marissa, from heartbreak, he pulled off a heart-wrenching switch after a car accident, swapping their dead baby for another woman’s living child. It is only in the end, when Marissa learns what he did, that she decides to take matters into her own hands.

Peter’s last moments play out in the show’s closing episodes. Marissa triggers his soy allergy when she eats something with soy, then kisses him while they are alone. Peter starts to panic as the reaction sets in. He looks to Marissa for help, but she hands him an expired EpiPen. There is no way for him to save himself now. The way the scene unfolds feels raw and painfully real: Peter’s fear, his desperate attempts to keep calm, and then the crushing realization that Marissa has set this up from the start.

Lacy’s insight adds another layer, showing the challenge of not just acting out physical pain, but also capturing the moment when Peter finally understands he has lost all control. His wife, the person he thought he was protecting, is the one bringing him down. The creative team of All Her Fault actually changed this part from Andrea Mara’s original novel. Their goal was to shine a brighter light on Marissa’s choices and to show Peter, for once, completely powerless.

The storyline of All Her Fault

All Her Fault begins with a situation that every parent is afraid of. Marissa Irvine comes to pick up her son, Milo, from a playdate, but when she knocks at the door, the woman tells her that she has never seen Marissa or Milo in her life. Panic sets in fast. This is when everything goes down the drain for Marissa. She soon finds herself trapped in a world of lies, secrets, and betrayals, most of them unfolding right before our eyes in the circle of adults surrounding her family.

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The hunt for Milo pulls everyone into the darkness of their own pasts. Suddenly, past hurts begin to tear apart, exposing everything buried for years. A fatal traffic accident, infants switched at birth, and mounting debts push people to the point where they are prepared to go to almost any extent. Then you have Carrie Finch, who took Milo, but she is not who everybody thinks she is. She is Josephine Murphy, the same woman whose child was killed a few years earlier in the same crash that involved Marissa and Peter. Josephine is convinced that Milo is her son, and that belief is what drives her over the edge.

All Her Fault plays on its psychological confusions. Flashbacks, shifting perspectives, each episode reveals a bit more, and the tension only grows. Friendships are ruined, violence erupts, and not everyone makes it out alive. Everything changes by the end, as Marissa must finally deal with the reality of reclaiming her own narrative after years of living in the shadow of everyone else’s secrets. In the end, All Her Fault leaves viewers with a haunting reminder of how far people will go to protect the ones they love, and how the truth, once uncovered, can destroy everything built on a lie.

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