Basically this husband and wife move to this house on the coast and the wife ends up missing (murdered I think), the cops suspect the husband did it and expect to find her body in the salt water pool at the back of the house.
When they drain the pool they find a heap of junk, but no body. That’s all I remember and I think it’s a 90’s film/tv film in two pieces. I think the lead male was a British actor and I’m probably wildly off when I say I think his name started with J. It kind of had the feels of a 90’s harlequin movie except yeah…