Mouse Finds Tenderness in the Tangles of Grief and Mother-Daughter Love

Grief changes relationships, but it also changes the people left behind. In Mouse, Alex Thompson and Kelly O’Sullivan place that upheaval inside a story about two mothers and two daughters, where love, resentment and the painful need to be understood keep colliding. The film’s sharpest insight is that people can share a profound loss while experiencing it in entirely different ways.

A friendship shaped by family differences

Minnie, played by Katherine Mallen Kupferer, is Callie’s best friend. Callie is played by Chloe Coleman; her mother, Helen, is portrayed by Sophie Okonedo. Minnie’s mother, Barbara, is played by Tara Mallen, who is Katherine Mallen Kupferer’s real-life mother. The film’s two mother-daughter relationships come into focus as Minnie grows closer to Helen and the family life she associates with her friend.

Teenage envy gives Minnie’s attachment to Helen an edge. She wants the comfort and attention she sees in Callie’s home, and her own family’s circumstances intensify that longing: Barbara is the household’s sole provider and can’t stay home with her daughter. They have less money than Callie’s family, no car for Minnie and a smaller house. Those details aren’t presented as a measure of Barbara’s love. Instead, they show how Minnie judges her life against an ideal of family that doesn’t account for the conditions her mother is living with.

Helen, who loves being a mother, gives Minnie warmth and care as the girl struggles with grief. But Minnie’s need for comfort sometimes crowds out Helen’s own loss. That imbalance gives their connection its tenderness and its limits. Helen is grieving too, and the film lets both women’s pain remain real without treating their experiences as interchangeable.

Barbara, meanwhile, sees how much of Minnie’s inner life she has been shut out of. Her daughter is navigating a first crush and relationship, and exploring her queerness, without opening up to her mother. The film stays with Barbara’s reactions as Minnie directs hurtful words at her or as Barbara overhears her daughter flirting with her crush. Those moments register as more than teenage conflict: Barbara is watching important parts of Minnie’s life unfold beyond her reach.

What remains after Callie

Callie’s absence reshapes the lives of everyone around her. Minnie has to imagine herself as more than “Callie’s best friend,” while Helen must find a sense of self beyond being “Callie’s mom.” Both had organized much of their lives around Callie, who drew them close in different ways. Their grief now brings them into contact with parts of her life they hadn’t seen before, as they learn how Callie mattered to other people.

That widening view of Callie becomes one of the film’s quieter gifts. People are known through particular relationships and moments; even those closest to us can only see some parts of who we are. The film finds meaning in what Helen and Minnie discover about Callie, while acknowledging that new understanding doesn’t erase the loss. Grief has no single shape here, and no one person’s version cancels out another’s.

Mouse also makes room for the specific cruelties that can mark a mother-daughter relationship. The film recognizes that it’s easy to admit that a parent and teenager argued; it’s harder to speak openly about the words they used to wound each other. This is familiar territory, but the film approaches it through the overlapping grief of two families and the complicated closeness that develops between Minnie and Helen.

Performances grounded in small moments

Thompson, the Chicago-based director, and O’Sullivan, who wrote the script, build a world that feels lived in: kitchens, living rooms and teenage bedrooms that carry the texture of ordinary life. O’Sullivan’s coming-of-age story gives grief room to unfold through relationships rather than reducing it to a single emotional arc. The result feels haunting and healing at once.

Mallen Kupferer gives Minnie a quietly assured presence, capturing the insecurity of adolescence alongside the weight of her loss. Okonedo is equally affecting as Helen. Her performance often depends on what passes across her face rather than on an explanation of what she feels, keeping the character’s sorrow from tipping into melodrama. Tara Mallen’s Barbara adds another point of view: a mother’s hurt as she recognizes the moments her daughter hasn’t shared with her.

The film’s care for these characters is what makes its domestic conflicts land. Minnie, Barbara and Helen don’t always understand one another, and none of them is reduced to a lesson or a villain. Their relationships hold affection alongside anger, disappointment alongside tenderness. Callie’s presence continues to shape the story, but her absence also gives the others room to encounter one another in new ways.

“There is no moving on, there is only living forward,” the film reminds us. That idea gives Mouse its gentle force: people can’t undo what they said, choose different parents or erase painful experiences, but they can keep living with what those experiences mean. Thompson and O’Sullivan make that forward motion feel less like a neat resolution than a patient, human possibility. For viewers drawn to intimate family stories and thoughtful coming-of-age dramas, Mouse offers company in the difficult work of grieving and loving imperfectly.