Rebecca "Becca" Corbett Nicole Kidman and Howard "Howie" Corbett Aaron Eckhart are still learning to breathe eight months after the accident that took their four-year-old son Danny, who chased their dog into traffic. Becca yearns to reclaim control by removing Danny’s clothes, clearing his belongings, and eventually selling the house, while Howie bristles at removing every reminder of their child and clings to memories in an attempt to keep Danny close. Howie even longs for another child, a desire Becca does not share, setting up a friction that threads through their daily life and sleepless nights.
Becca’s mother, Nat Dianne Wiest, bears her own heavy grief, having lost her son Arthur to a drug overdose years earlier. Becca insists that these losses are not directly comparable, framing their pain as distinct experiences rather than a uniform template for mourning. Becca’s sister Izzy is pregnant, and Becca keeps offering sharp, passive-aggressive advice about motherhood that Izzy increasingly resents, widening the family rift even as love quietly remains in the background.
The couple tries to find footing in group therapy, a space that promises support but often exposes the raw edges of their grief. Becca’s irritation grows toward those who attribute their tragedy to “God’s will,” while Howie continues to attend, hoping to coax Becca back into the circle. A newer member, Gabby, attends alone and reveals her own painful backstory—that her husband left her. Gabby and Howie drift toward companionship—smoking in Gabby’s car before sessions and sharing casual afternoons away from the meetings—but Howie resists a drift toward anything that could threaten the fragile bond he still shares with Becca.
Meanwhile, Becca forms a fragile, unsettling connection with Jason, the teenage driver who struck Danny. She learns that Jason carries guilt and that he does not blame himself for the accident. He shares a spark of honesty with her about a comic book he’s writing, titled Rabbit Hole, a story about parallel universes where different choices create different lives. Becca asks to see the finished work, and Jason promises she can read it when it’s complete, opening a doorway to a conceptual release that mirrors Becca’s own struggle with what-ifs and alternate paths.
The house goes on the market as Becca and Howie attempt to reclaim a sense of normalcy. On the open-house day, Howie stays in Danny’s bedroom with a prospective buyer and voices the truth of his grief when asked about his son; the buyer’s awkward reaction underscores how others silently grapple with loss. After the showing, Jason arrives with the completed comic and enters through the open door, catching Howie’s attention and Becca’s attention split between anger and astonishment. Becca admits she has been seeing Jason, a disclosure that intensifies Howie’s anger and leads Jason to leave.
Becca and Jason reconnect, and their conversations spiral around the content of Rabbit Hole and the concept of parallel lives. Becca comes to a startling realization: she’s living as a version of herself defined by sorrow, a “sad” self among countless other possibilities in which grief does not have to own every moment. This recognition begins to loosen the grip of despair and invites fresh perspectives on life. Howie and Becca start to reengage with life through small, restorative activities—bowling, simple games, and shared routines—that hint at healing without erasing memory.
A pivotal shift arrives as they plan a garden lunch with a small circle of trusted friends. Howie orchestrates the scene as a careful, incremental step back toward normalcy, speaking in the background about how ordinary moments will gradually reinsert themselves into their days. The scene morphs from planning to quiet reality, and after the guest list dwindles and the last friend leaves, Becca and Howie sit together in the garden, stillness wrapping around them like a soft shawl. Becca reaches out to hold Howie’s hand, a subtle, intimate gesture that signals a tentative commitment to living alongside their grief rather than attempting to outpace it.
In the end, the film remains a testament to endurance rather than resolution. Becca and Howie discover that grief is not something to be conquered or forgotten, but something to be acknowledged and carried forward with new rituals, smaller joys, and a patient acceptance of the life that remains. The emotional landscape they navigate—of guilt, forgiveness, memory, and the possibility of renewed tenderness—resonates with a quiet honesty about what it means to heal without ever fully leaving a loved one behind.
