Cupid's a Psycho is a contemporary love story set in Glasgow. It deals with the intense relationships of three teenagers and a cruel, unthinking act that tests the limits of love and forgiveness against a background of disadvantage and alienation in central Scotland.

At school, Blithe coasts along. Quiet and defensive, her home life is shaped by precarious poverty and the ill health it creates. When Robbie expresses an interest in Blithe, she initially reciprocates but soon after dumps him via a recorded video chat. She is persuaded to share the humiliating footage which is then widely shared at school. Robbie's best friend Jamie is determined to defend and support him but struggles to manage the fall out.

From this, the plot unravels and the trio navigate the heartache and pains of young love and teenage relationships, but from the unique lens of poverty in modern Scotland.