Lin becomes a tutor working with an agent named Music. But it isn't enough money. However, Lin figures out another plan to earn more money. Music then suggests that Lin take STIC exams for other people, since the pay is very high.  Lin then asks Pat and Grace to join this STIC exam cheating mission together.

Lin and Bank are taking the STIC exam in Australia. However, when it's time for Bank to send his part of answers back to Thailand, Bank threatens not to do so unless Pat and Grace transfer him another 500,000 baht. With time closing in on them, this mission runs into a bigger obstacle which becomes a turning point for both Lin's and Bank's life.