Joe and Carolyn actually dance together.
Maggie looks around the foyer of Collinwood and gives a slight smile, as if, she is planning one day to live there or maybe the actress herself was making plans.

Vickie finds the picture at the Evans' that looks like she, but curious Maggie has never come across it before or Sam not thought that Vickie looks like someone he used to know?  Sam reveals his version of the manslaughter case and then Burke reveals his version.

David sees ghosts and they are his friends so to him death would not be the end but just another state of being. 
Sam calls Carolyn, Caroline.  He should know the right name of the daughter of the wealthiest person in town.
David lies on the drawing room floor as if it were a normal living room.  "what other kid gets to live in a house with real ghosts. They are all my friends." 
David later comes in all dirty and Carolyn calls him morbid.  One gets the hint that Carolyn prefers to be the only child in the house and has a difficult time sharing and if this were a normal house she'd still find him irritating.

VIckie shares the sad story of her lonely past with Maggie.  I'm surprised Maggie hasn't gotten the story from some other person or gotten it out of  Vickie herself as  Vickie's been in town six days now.  I'm actually surprised that Vickie didn't tell her the first time they met.

Sam refers to Bill in the past tense and then later wants to get the letter back.  This makes no sense as he still needs the protection as Roger isn't dead.  He is probably worried Maggie will read it, but the thing to have done in the first place would have been to leave it with a lawyer. The Evans family learns that Bill is dead.

Vickie states in the voiceover that Collinwood is now her home.  The foundling home and New York must have been really awful if she so readily takes this strange place as her home.   Her interactions that we see with the people of her past don't appear all that bad, although she does have some rather awful remembrance of some that she retells from memory.
David seems to be gleeful in bringing up that Vickie was screaming in the night as she tries to deflect his questions.  He then states among all his other references to death, that he will kill anyone who harms his aunt.  I seem to recall that [spoiler]in an earlier episode David killed something he loved.[/spoiler]
David does inform Vickie that he will attend her funeral.  Yes, Vickie would be well advised to have David read all the books that were ripped off by the writers of DS and base her lesson plans on that, if she has lesson plans.  

The opening is a replay of the scream scene from last episode.  I think this is the first time they have done this, although it was a common serial formula in the 1960's. 
Loved the interchange with Elizabeth and Roger.  It underscores how useless he really is. 
Roger and Matthew are both acting stranger than usual.
Vickie reveals that David said he saw in his crystal ball that  Bill was dead  and that Roger had killed him. 

Vickie leaves the house to go to Widow's Hill in a filmed exterior shot.  There she meets up with Carolyn who says there are Ghost's everywhere.  Then there is a beautiful shot of the water below.  Then there is the "Death Sequence" that Dark Lady mentions, and finally it culminates in Vickie screaming as a body bobs in the water.  A well thought out script.