This is one of those episodes written to give Marina Sirtis full work in an episode instead of her usual four or five lines. And you can guess it even before viewing, it will involve Counselor Troi using her telepathic powers to find why an event happened. And in this case we have a suicide, by Lt Kwan, and she is set to investigate so the family can have some answers. And during her investigation she has an empathic experience about an event that happened many years ago as the Enterprise was being built. So now we get story where Deanna, by her telepathic powers, can view into the future and possibly solve a mystery of why the young Lt. Kwan committed suicide.
We all know that the writers try their best to spread the story-lines so that each character is featured in at least one or two episodes a season. And I feel sure that writing for Marina Sirtis character is difficult. But in this story it goes far overboard making her telepathic powers and the following story confusing and bothersome. At the end of the episode it gets all summed up by a play on words that is difficult to understand. When the reason for the suicide and other actions are revealed, it all seems so made-up that the story was for naught. An otherwise nice story that seemed rush to conclusion. This is one time the ending ruined the story.