Heinz's wife is desperately ill with cancer and only one type of drug will save her
The druggist charges much due to the high R&D costs of the special drug
Heinz faces a big dilemma, does he steal the drug and face the consequences, leave his wife to die, or steal the drug and flea from the consequences
Heinz and his wife flea the police after stealing the drug. People who thought this of Heinz usually are at a pre-conventional level of moral development
Heinz mourns his wife after death because he thinks that is was wrong to disobey the law. People who think like this generally have a conventional level of moral development
Heinz turns himself in after stealing the drug because he fell s that although what he did was right the law says otherwise and he respects that. To have this level of moral development is considered to be post conventional.