Lars Magnus Pettersson and Mia Pettersson

Lars Magnus Pettersson and Mia Pettersson form the concealed household that transforms Sofia Zetterlund’s understanding of her relationship with Lars. Sofia pieces their connection together from an unfamiliar number, a shared address, and a visit to their home in Saltsjöbaden. What begins as a suspicion that Lars has another partner becomes a witnessed family scene: Mia, Lars, and their children celebrating New Year’s Eve together. The encounter establishes the existence of a second family, while leaving unanswered whether Mia knows that Lars has also built a life with Sofia.

Traces of a second household

The connection first emerges through a number Sofia found in Lars’s phone. Directory enquiries associates it with Mia Pettersson, listed at Pålnäsvägen in Saltsjöbaden. Beneath the address is another number for Pettersson’s Flowers in Fisksätra. These ordinary records turn a private suspicion into a geography: a named woman, a home address, and a business bearing the same surname. Sofia is beginning to understand that Lars is sharing his life with someone else, but still hopes the information may be a mistake.

A search through Lars’s former workplace supplies another fragment. A helpful receptionist locates a Magnus Pettersson who left more than eight years earlier, after working briefly at the company’s German office in Hamburg. The most recent address on file is Pålnäsvägen, the same address associated with Mia. The convergence of the work record and the telephone listing helps Sofia connect the man she knows as Lars with the household she has begun to suspect. The records do not explain the arrangement; they establish the trail that leads her to test it in person.

Two families, one life

Sofia’s realization arrives as an abrupt joining of separate clues. She understands that Lars has had two families: one in Saltsjöbaden and one with her in their apartment on Södermalm. The parallel is the decisive fact of the relationship. Mia is not merely a name attached to an unexplained telephone number; she belongs to a domestic life Lars has maintained alongside his life with Sofia.

The imagined details of that household sharpen the betrayal without all becoming confirmed facts. Sofia thinks of Mia making love to Lars throughout their relationship and wonders whether the girl she will see is his daughter, a child he did not want to have with her. She also recalls the Lou Reed album Lars played for her in a hotel bar in New York, and infers that it may be in his record collection in Saltsjöbaden, where he listened to it with Mia. The text presents these as Sofia’s dawning interpretations, not as information independently supplied by Mia. That distinction matters: the double life is confirmed by what Sofia witnesses, while the precise history and terms of Lars and Mia’s relationship remain outside her knowledge.

The New Year’s Eve visit

During the remaining days before New Year’s Eve, Sofia speaks to Lars only once, in a conversation lasting no more than thirty seconds. At eleven that night, she drives to Saltsjöbaden and finds Pålnäsvägen. She parks a hundred metres from the large yellow, two-storey villa, with its white bargeboards and well-kept garden, then walks back to the drive. Lars’s car stands in front of the carport. Rather than enter, Sofia circles behind the carport and watches the house through a large picture window from beneath the trees.

Inside, Lars comes into the living room carrying champagne and calls back into the house. Mia, a beautiful brunette Sofia recognizes from the florist’s, arrives with a tray of glasses. A daughter comes in from an adjoining room, accompanied by a young man who looks like Lars. Sofia realizes that Lars has a son as well, and wonders whether both children are grown. The scene supplies visible evidence of a family beyond the relationship she believed she shared with him: Mia is in the home, and the children gather there with Lars.

Lars sits on the large sofa with Mia and the two young people, pours champagne for them all, and joins them in a toast. For thirty minutes Sofia stands as if paralyzed and watches. To her, the scene is both real and false: real because the family is plainly present, false because its warm, welcoming appearance is now inseparable from the deception that brought her there. The window lets her see the household while keeping her outside it. She witnesses the celebration but does not speak to Mia or confront Lars, so the scene reveals their shared domestic life without disclosing Mia’s awareness of Sofia.

Consequences and significance

The visit settles what the records and suspicions could not. Lars and Mia appear together in the home at Pålnäsvägen, celebrating with the children; Sofia can no longer sustain the hope that the address and number point to a mistake. She decides she must end things with Lars and regard him as dead to her. Her response frames separation as necessary for survival: some things, she thinks, must be cut out of a life. The account does not describe a conversation between Lars and Mia about Sofia or a confrontation among the three adults. Instead, their relation is disclosed through Sofia’s reconstruction and her silent observation of a family ritual.

The contrast between the two households gives the revelation its force. Lars’s family with Mia occupies a large house in Saltsjöbaden and gathers around champagne on New Year’s Eve; his relationship with Sofia has unfolded in their apartment on Södermalm. The details make the double life concrete without resolving its private arrangements. Mia is identified as Lars’s partner and the mother or presumed mother of the children present, but the narrative gives no account of her perspective. For Sofia, the sight of the toast closes the gap between suspicion and certainty—and turns a hidden relationship into the immediate cause of a break.