You'll Only Have Each Other (2018)

After the death of her mother, a disconnected daughter, Maggie, struggles to reconnect with her twin brother, Gabe, even though he's the only family she has left. As she pushes through the day of the funeral reception, her guilt for having left Gabe alone to tend to their mother in her final months begins to tangibly manifest itself in strange and horrifying ways. Maggie must now face her demons and accept responsibility for what she’s done, or forever be haunted by her past mistakes.