A director pays a visit to a hydroelectric plant construction site and gives a grandiose speech on the impending glory of its opening. His exaggerated body language soon becomes a running gag among the workers who pass around the rumour that he might have dropped the diamond ring during the speech, which the director ironically - and wholeheartedly- believes.
| Actor | Role |
|---|---|
 Thinh TrinhDirector Trí | Director Trí |
 Xuân ĐịnhVice-director Mộc | Vice-director Mộc |
 Đỗ Hồng QuânTrần Anh | Trần Anh |
 Cao KhươngDirector assistant | Director assistant |
| HHoàng ThắngEngineer Lâm | Engineer Lâm |
 Trịnh MaiGeneral Director | General Director |
 Ngọc LanGeneral Director’s wife | General Director’s wife |
 Lân BíchGeneral Director’s assistant | General Director’s assistant |
 Thanh ThủyTrí’s wife | Trí’s wife |
| XXuân TạcTrần Anh’s dad | Trần Anh’s dad |
 Thúy VinhTrần Anh’s mom | Trần Anh’s mom |
 Văn HiệpDead man’s son | Dead man’s son |