Trama

When a new family moves in next door to Laura and her family, their young daughter, Megan, quickly captivates her, stirring up painful memories of her own daughter, Josie, who died several years previously.

When a new family moves in next door to Laura and her family, their young daughter, Megan, quickly captivates her, stirring up painful memories of her own daughter, Josie, who died several years previously. Before long, Laura's memories turn to obsession as Megan's unsettling behavior begins to convince her of something supernatural. As Laura's determination to get to the bottom of it becomes all consuming, her family begins to fracture and the line between the extraordinary and the real becomes ever more obscured in this haunting story about a mother's love.—Anonymous

Laura lives in Northern Ireland with her husband Brendan and her son Tadhg. Her daughter Josie was killed in a car accident several years prior to the events of the film, with Brendan driving.

A girl named Megan moves next door to Laura with her parents, Marie and Chris. Megan and Laura soon strike up a friendship. Laura becomes intrigued when Megan says that she has studied at the local school before and visited the local graveyard, and requests that Laura make a smiley face with ketchup when she invites Megan for dinner. Marie says that Megan has never studied at the school before or seen the graveyard.

One day, Laura takes Megan to the nearby playground at her request. Megan says that she visited the park before; Laura angrily takes her home. Marie asks Laura to stay away from Megan. Brendan decides that the family should leave town for a few days to give Laura a chance to relax. While looking through Brendan's phone, Laura finds several photos of Megan on it.

After they return home, Laura takes Megan on a drive along Ballyfield Road, the road Brendan was driving on when the accident occurred. Megan says that Brendan was singing while driving along the road, which convinces Laura that Josie was reincarnated as Megan. Tadhg attacks Megan that night, which results in the police being called in. Laura asks Brendan to stay at another place for a few days to give her some space.

Laura finds a photo of Brendan with Marie at a party, contradicting his previous claim that he did not know her. Brendan meets with Megan, who has realised that Brendan is her actual father. Laura breaks into Megan's house and finds several photos of Josie and a CD containing a 2007 recording of Josie and Tadhg. She confronts Marie, accusing her of using Megan to take revenge on Brendan. The confrontation turns violent after Laura threatens to have Megan taken away from Marie, ending with Marie stabbing Laura with a shard of glass. Megan arrives in time to apologise to Laura; in a hallucination, Laura briefly sees her as Josie and tells her that she loves her.

The film ends with a fully-recovered Laura placing flowers at Josie's grave. (thanks to Wikipedia)