What ultimately motivates Kuurna to kill Alma Skrof is a remark about his and Kaarle's relationship being abnormal. Kuurna is a decisively complex killer, his motives being more psychological than practical, who also displays guilt over his actions. He intercepts the false confession made by Kirsti and he may have painted the tilted pot unconscious that it would ultimately tie him to the crime-scene. After Palmu points out the tilted pot in Kuurna's painting, Kurt attempts suicide by throwing himself down the spiral stairwell of his apartment building but is stopped by the police at the last second.