One aspect of this episode I found intriguing was that the initial introduction of the the ghost of the friend is very disturbing and you have a feeling that he is a malavolent spirit. It is only later we learn that he is, in a sense, a lost soul just like the lead character. This is a fine drama, dealing sensitively with the real regret many feel at some time in their life, that they have not lived the life for which they were intended.