After her father's sudden death, Mia needs to fulfill a promise and tries to play music on bottles filled with water. Her friend Natalie shows up trying to persuade her to go to the funeral, Mia protests.

Glass is a poetic short film about grief, memory, and the power of art to preserve connection. After the sudden death of her father, Mia finds herself alone with a room full of silence and unfulfilled promises. Among them is their shared dream: to play music together on water-filled glass bottles, an instrument her father once performed with and longed to pass on to her.