<P> In 2073, as Sunday returns from her job at a bank, she sees C.A.B. agents detain a child as onlookers protest . The siblings watch the recorded incident and debate turning themselves in, finally agreeing to continue their act . The following day, Monday prepares her disguise as Karen, nervous about giving a presentation . At a checkpoint, Monday runs into Adrian Knowles, a C.A.B. agent who flirts with her . At the bank, Monday's co-worker Jerry, a competitor for a promotion, hints at blackmailing her . </P> <P> When Monday fails to return home, Tuesday retraces her steps . Tuesday learns Monday got the promotion and met Jerry at a bar . Before she can investigate further, C.A.B. agents detain her and cut off her communications . Adrian sees Tuesday being escorted to a cell, where she meets Nicolette Cayman, head of the Bureau and a candidate for parliament . Cayman explains she knows about Tuesday's siblings, and, when Tuesday offers a bribe, Cayman reveals Monday offered the same deal . Cayman orders C.A.B. agents to assassinate Tuesday's sisters . </P> <P> C.A.B. agents use a severed eye to bypass a retinal scanner at the Settman home . Thursday ambushes the agents as they arrest the other siblings . The sisters kill the agents, but Sunday dies . Learning the eye is Tuesday's, the sisters suspect Jerry may have sold them out . The next day, Wednesday leaves without disguising herself and confronts Jerry . He reveals "Karen" got the promotion when she sent millions of euros to Cayman to fund her campaign . After a C.A.B. sniper kills him, Wednesday kills several C.A.B. agents and flees . </P> <P> As the others remotely guide Wednesday to safety, Adrian shows up at the apartment, concerned about "Karen". Thursday convinces Saturday to leave with Adrian, who has had a long - term sexual relationship with one of the sisters . Pretending to be Karen, Saturday has sex with Adrian and covertly links their bracelets, allowing Friday to hack into C.A.B. headquarters . On a video feed, they apparently find Monday in a holding cell . Meanwhile, C.A.B. agents corner and kill Wednesday . After Adrian leaves his apartment, C.A.B. agents kill Saturday as she tells them Monday was dating Adrian . Reasoning that she cannot survive on her own, Friday sacrifices herself to give Thursday a chance to rescue Monday when C.A.B. agents again storm the sisters' apartment . </P>

Who died first on what happened to monday