Ending (Spoilers)

Overall I enjoyed the show and it didn't give too many clues as to who did it throughout. Well acted and it was entertaining, though nothing extraordinary. I would recommend if you like a murder mystery.

However, the ending was a bit disappointing. So the pregnant lady is arrested, but what actual evidence did they have against her? A claim by someone that they think she stole the pills, traces of tallow from lotion that anyone had access to in the house, and then the police officer observing that she was nervous washing a glass? I kept thinking, unless she admits it, the cops have no witnesses or hard evidence to prove that she committed the murder. Sure the motive was there, but that was all they had. I thought the ending really needed a smoking gun that she committed the crime.