The Octopus is the fifth episode of the second season of the television series Jessica Jones, and the eighteenth episode overall.
Backed into a corner, Jessica's forced to share her intel on the killer. A groggy Trish tries to pull herself together before an important meeting.
Jones spends a day at the police station before Hogarth convinces her to tell the truth. Detective Eddy Costa believes Jones, and releases her with the promise that she will keep Costa informed of her investigation. Walker, bailed out by her mother, struggles with after-effects of using the IGH drug. Her new boyfriend Griffin Sinclair asks her to marry him, but Walker turns him down. She takes the IGH drug again. Ducasse takes Green to Hogarth, who agrees to protect her.
Hogarth asks Green about IGH's experiments. Jones meets with David Kawecki, an inmate at a mental hospital serving time for the murder of Green's fellow nurse, who was actually killed by the mysterious woman. Jones learns of a shared interest in octopi that Kawecki has with an IGH doctor, and visits the aquarium. She recognizes the doctor, Karl Malus, in a new memory from after the accident. He meets with the mysterious woman, who upon discovering Jones surveilling them, smashes the glass enclosure of an aquarium in order to create a commotion to cover their escape.