In act 4, scene 1 of Shakespeare's Romeo and Juliet, the title character Juliet goes to Friar Laurence for consolation because her husband Romeo has been banished from Verona and her parents have just betrothed her to Paris. She is expected to marry Paris in two days and is at a loss for what to do because she is already married. Naturally, marrying a second man would be a sin, and she threatens Friar Laurence with the second sin of suicide should he be unable to find some way to help her.
Friar Laurence proposes that she tell her parents she is willing to marry Paris and then, the night before her wedding day, drink a vial full of a liquid that will stop her pulse, her breath, and her blood flow, making her appear to be dead for 42 hours. In other words, his plan is to help her fake her own death, as we see in the passage:
Take this vial, being then in bed,
And this distilled liquor drink thou off;
When presently through all thy veins shall run
A cold and drowsy humour; for no pulse
Shall keep his native progress, but surcease;
No warmth, no breath, shall testify thou liv'st. (V.i.95-99)
The rest of Friar Laurence's plan follows: he'll inform Romeo of the faked death and have Romeo meet her in the Capulets' family tomb, where they will bury her once they believe her to be dead. Then, Romeo will carry her off back to Mantua, where they will live happily as husband and wife.