Pharmaceutical name: Little blue bottle with a 'Drink me' sign.
Most used for: Inducing Stockholm Syndrome instantaneously.
Chemical composition: XXXtradesecretXXX.
Step 01. Know your mark. Hannah Farleigh, 29, forensic technician at the morgue. Lives alone, has eight locks on her front door, very fond of Breaking Bad.
Step 02. Tailor your plan to take advantage of the weak spots in the mark's defences. In this case, her guard is especially low when she watches television at full volume.
Step 03. Gather all the necessary ingredients for the perfect criminal brew. One car that will look innocuous in her neighbourhood. One street thug who owes the family a debt. Black ski mask, semi-automatic pistol, motorcycle boots, whatever else is the standard garb of a burglar. One little blue bottle.
Step 04. Undertake all necessary preparations. Firstly, ensure there is radio contact with said thug at all times. Secondly, park outside the fast food dump a street away from the mark's residence. Stay inside the dump while waiting for thug to execute his part of the plan. Thirdly, have said thug, dressed as the garden-variety home invader, break into the mark's house. Ensure this results in her having the opportunity to make a heroic struggle for her life and run out the broken front door.
Step 05. Position yourself accordingly. When the mark runs for the nearest safe haven, intercept her. Play the Good Samaritan. Be concerned, be helpful, be sure to convince her you're capable in a crisis.
Step 06. Inject the mark with the contents of the little blue bottle.
Step 07. Wait for the effects to take hold and offer to drive her to the nearest police station.
Warning: This compound is very easily absorbable and very strong. Its mind-altering properties include rendering the patient extremely susceptible to any suggestion whatsoever. It should be administered under controlled conditions, where the doctor is the only one making the necessary suggestions to the patient. Reported cases of lab interns muttering, "Oh, blow me," in exasperation have not ended well.