1) The story begins with Marie and Johnny secretly meeting in the school science lab after hours where they start to develop feelings for each other. However, Marie is worried her boyfriend Alfie will find out given his jealous and possessive nature. 2) That night in the lab, the power goes out and Marie and Johnny discover matches and petrol, believing it to be part of an experiment. The next day, newspaper headlines report two students died in a suspicious fire at the school. 3) Through a series of flashbacks, it is revealed that Alfie grew jealous of Marie and Johnny's secret relationship. The story implies that in a fit of rage, Alfie set the fire to kill Marie and