This is highly enjoyable episode of Hammer House of Mystery & Suspense, with another story that centers around deceit and betrayal.
Successful London-based American couple Ann & Greg, played by Shirley Jones & former child actor Dean Stockwell (just before he was about to find remewed fame in the Quantum Leap series), decide to buy a rural retreat in the Buckinghamshire countryside.
But in every dream home there's a heartache - and it seems that someone is out to spoil their happiness. 10 years earlier, former attorney Ann had succeeded in getting a sure-fire murderer off the hook back in New York - he had murdered a young woman in Central Park whose body had been left hidden under a red rose bush.
A sinister-acting local florist has now delivered some red roses to Ann & Greg's new home on behalf of persons unknown - and appears to be watching the couple & behaving strangely.
What is the link between him, and what happened in New York 10 years earlier?
This is another story written by the ever-reliable Brian Clemens - so the viewer knows for sure they will be in for some twists, turns and red-herrings, and will be kept guessing till the end.
Former hunting lodge St Hubert's House in Gerrards Cross (seen in many films & TV series over the years) makes for an atmospheric backdrop, and reinforces the couple's isolation and vulnerability in the their country retreat.
The action is suitably directed by Hammer veteran Peter Sasdy, and slowly builds to a dramatic and clever climax.
All in all, a satisfying and tense story that makes for another excellent entry in this memorable series.