When her friend, Lorna, gives birth she decides that she too wants a baby, but when she suggests it to Ben, the ex she is still sleeping with, he ends things for good, later informing her that he will be leaving town.

She spots a girl playing drums in the window of her local music shop but while the two acknowledge each other they do not talk.

The two begin meeting regularly to play in the music shop window performing in front of passersby.

Heartbroken, Justine returns home where she rearranges the postcards she has been getting from Ben into a portrait which form a cabin she recognizes.

[3] Bruce Demara writing for the Toronto Star called Heartbeat "an accomplished work by a talented filmmaker, a tale that offers equal measures of gentle humour and wisdom".