Drugs is something that usually consumed due to pain and sheer loneliness. Overdose touches on this subject as the artist promises to be there and save her from this pain. The song is both hopeful and illustrates a new perspective of love. One where he is there through her struggles guiding her to a better path and happiness with him.
The high-hats in the song correspond to these hopeful lyrics and the song itself provides people with a sense of safety in their most depressive times. Furthermore the authenticity of the lyrics is what makes the song so powerful. It is definitely a must listen.
Go check out the song here: