S1, E3: After finding her dead in a bathtub full of bleach, detectives had their work cut out for them as they narrowed down Susan Eyre's killer from an incredible 210,000 possible suspects.

S1, E3: After finding her dead in a bathtub full of bleach, detectives had their work cut out for them as they narrowed down Susan Eyre's killer from an incredible 210,000 possible suspects.